A kind of pregnancy which occurs outside of the uterus. In this type of preg-  nancy, the embryo is attached to displaced tissue located on the wall of the   abdomen.                                                                       Any substance, usually a chemical or drug, which has the potential to cause    abortion or termination of pregnancy.                                                                                                                         Removal or expulsion of any product of conception from the uterus before the   end of the gestation period.                                                                                                                                  When used in reference to sexuality, this word connotes the act of refraining  from certain or all sexual behaviors.                                                                                                                         A slang term which refers to a bisexual. A male or a female who has            characteristics of both sexes or derives sexual gratification from interaction with both sexes; Ambisexual.                                                   A period in human development which occurs between the onset of puberty when   secondary sex characteristics appear and adulthood when natural physical growthhas ceased.                                                                    This syndrome occurs when a genetic female has mixed sexual characteristics of both males and females due to excessive production of a hormone by the adrenal gland known as androgen.                                                       A legal term which refers to the act of heterosexual intercourse between       partners which are unmarried, at least one of whom is married to another       person.                                                                        The afterbirth consists of fetal membranes and placental tissues which are     expelled from the uterus following birth of an infant.                                                                                                        Behaviors such as holding, kissing, caressing and exchanging of affections     which occur after sexual intercourse.                                                                                                                         A kind of love which is characteristically unselfish and fully committed to thewelfare of the person or thing which is loved.                                                                                                                Technically known as Acquired Immune Deficiency Syndrome, AIDS is a disease    which has multiple physical symptoms due to a breakdown of the body's natural  immune defenses against disease. The majority of AIDS victims are gay males.   Also known as an amniotic tap, this term refers to a procedure in which        amniotic fluid is drawn from the amniotic sac which surrounds the baby and is  analyzed microscopically for indications of genetic disorders in the fetus.    Sexually pleasing sensations experienced through stimulation of the anus or    rectal area.                                                                                                                                                  The behavior of inserting the penis into the anus of the sexual partner.                                                                                                                                                                     A Freudian term for a stage in psychosexual development in which the child     derives sexual gratification from stimulation of the muscles which control     defecation or general stimulation of the rectal area.                          The behavior of orally stimulating the anus of a sexual partner.                                                                                                                                                                             Any substance, usually a chemical or drug, that reduces sexual desire.                                                                                                                                                                       A set of steroid hormones also known as the male sex hormones. These hormones  influence the growth of both body and bone structures. They produce            masculine sex characteristics and influence sexual desire in both sexes.       An individual, male or female, who has a mixture of both feminine and masculinecharacteristics.                                                                                                                                              A psychological deviation in which an individual has an extreme fear of men.                                                                                                                                                                 A kind of hymen which is structurally characterized by having only one opening into the vaginal orifice.                                                                                                                                     An infant who is born without testes. An infant whose testes have not descendedinto the scrotal sac before birth.                                                                                                                            This term refers to the inability to reach an orgasm. This definition may also be used in reference to primary and secondary orgasmic dysfunction in which    anorgasmia plays a symptomatic role.                                           The behavior of having an extreme dislike or distaste for interaction with     males; a general aversion to males.                                                                                                                           Any substance or material, usually a chemical, drug or natural compound, which has the potential to directly or indirectly cause or enhance sexual desire or  drive.                                                                         The darker area or pigmented ring which encircles the nipple of the breast.                                                                                                                                                                  A Christian doctrine which appeared between approximately 150 and 600 A.D. and taught that indulgence in sexual and material pleasures interfered with        attaining spiritual and intellectual goals.                                    A person who does not receive and does not desire sexual gratification from anykind of sexual source or behavior.                                                                                                                            A slang term which refers to the buttocks or rectal area.                                                                                                                                                                                    When used in reference to sexual behavior and orientation, this slang term     connotes a homosexual or an elderly prostitute.                                                                                                               This term generally defines self-stimulative behaviors or sexual behavior whichis directed towards the self. Auto eroticism encompasses the behaviors commonlyknown as masturbation.                                                         The behavior of orally self-stimulating the penis.                                                                                                                                                                                           When used in reference to sexual behavior, this term connotes a type of        behavioral therapy in which the person performing the deviant sexual           behavior learns to associate their behavior with an unpleasurable outcome.     A secondary sex characteristic of both males and females which usually begins  to appear at the onset of puberty. Axillary hair is commonly known as underarm or armpit hair.                                                                When used as a verb, "to ball" is a slang term which refers to copulation or   sexual intercourse.                                                                                                                                           A slang term which refers to the male reproductive glands; Testes.                                                                                                                                                                           Two small glands which flank the vestibule or entrance to the vagina. These    glands secrete small quantities of mucous like substance during the plateau    phase of sexual arousal. The primary function of the substance is unknown.     A women who sells her participation in sexual interaction for a monetary fee; aprostitute or a woman who is in charge of the management of a house of         prostitution.                                                                  Basal Body Temperature(BBT) method is a rhythm method of birth control by whicha woman can determine whether ovulation has occurred or not through monitoring her temperature either orally or anally in the morning before any activity.    When used as a verb "to beat one's meat" is a slang term which refers to the   behavior of self-stimulation of the genitals; Masturbation.                                                                                                   When used as a verb "to beat off" is a slang term which refers to the behavior of self-stimulation of the genitals; Masturbation.                                                                                                            A variation in sexual behavior in which a person derives gratification from    sexual interaction with non-human animals. See also zoophilia.                                                                                                A legal term which refers to the illegal marriage of someone who is already    legally married to someone else.                                                                                                                              A rhythm birth control method in which the thickness and color of the cervical mucous is monitored in an attempt to mark when ovulation has occurred to       determine when coitus can occur without potential fertilization of the ovum.   A tubular canal which spans the length between the vulva and the cervix        through which the child passes during birth. See also vagina.                                                                                                 In general, this term refers to any intentional action taken to limit the      occurrence or quantity of births. Examples are the various kinds of birth      control pills, the diaphragm, the rhythm method and abortion.See contraception.When used in reference to hermaphrodites, this term connotes having genital    organs of both sexes. The term also refers to a person who derives sexual      gratification from interaction with both sexes.                                A variation in sexual orientation and behavior in which one identifies         himself/herself as being sexually attracted to and by members of both sexes.                                                                                  When used as a verb "to blow somebody" refers to the behavior of oral          stimulation of the penis; Fellatio.                                                                                                                           A slang term which refers to an act of oral stimulation of the penis; fellatio.                                                                                                                                                              Also known as B&D, this term refers to a variation in sexual behavior in which gratification is derived through the use of ropes, cords or other devices to   tie and "discipline" the sexual partner.                                       A house which employs and boards prostitutes for the purpose of prostitution.                                                                                                                                                                The sexual behavior of penile-anal intercourse.                                                                                                                                                                                              A slang term which refers to a lesbian who is masculine in appearance and      behavior.                                                                                                                                                     A slang term which refers to a person with a masculine appearance.                                                                                                                                                                           Also known as a caesarean section, this term refers to a surgical procedure in which the fetus is removed from the womb after making an incision through the  walls of the abdomen and uterus.                                               A method of birth control which entails the behavior of abstaining from sexual intercourse during the time between ovulation and the onset of the monthly     menstrual flow.                                                                A substance which is composed of the powdered carcasses of a species of        beetle. Cantharides is commonly known as "spanish fly" and is believed by some to have aphrodisiac qualities. Misuse may cause medical complications.         This term refers to an intense muscular spasm which is characterized by        powerful contraction of the muscles of the hands and feet as a result of       heightened sexual arousal which usually accompanies orgasm.                    Removal of the gonads. In women, this term refers to the removal of the        ovaries. In men, this term refers to the removal of the testes.                                                                                               This term is derived from Freudian psychoanalytic theory. It refers to         unconscious fears or beliefs that the genitals will be removed as punishment   for unacceptable sexual feelings which are directed towards the mother.        The behavior of refraining from sexual activity. Of or relating to the state ofbeing single or unmarried.                                                                                                                                    A contraceptive device which is spherical in shape and is placed over the      cervix. The cervical cap is maintained in position through suction.It is       similar in appearance to a diaphragm, but smaller in size.                     When used in reference to sexual anatomy, this term connotes the lower part of the uterus which narrows and forms the opening into the vagina.                                                                                               The earliest symptom of the sexually transmitted disease known as syphilis. Thesymptom consists of an open painless sore or ulceration of the skin at the     point where the syphilitic organism entered the body.                          An extremely infectious and highly contagious sexually transmitted disease     which results in ulcerated sores at the points of physical or sexual contact.  The incidence of this disease is most common in the Far East and tropics.      The behavior of refraining from sexual intercourse.                                                                                                                                                                                          A slang term which refers to a female hymen. A hymen may partially obstruct thevaginal opening in the majority of females who have not experienced sexual     intercourse or some kind of vaginal penetration.                               An arch or curvature of the penis which can be corrected through surgical      intervention. Factors leading to this condition are a birth defect leading to  an opening in the underside of the penis (hypospadia) or urethral infection.   Rod shaped structures that are present in the nucleus of all cells and contain the genetic information or hereditary factors responsible for transmittal of   various traits from generation to generation.                                  The removal of the foreskin or clitoral hood which surrounds the head or glans of the penis or clitoris respectively.                                                                                                                        A slang term which refers to the sexually transmitted disease known as         gonorrhea.                                                                                                                                                    A spongy cylindrical body of erectile muscle tissue which runs the length of   the underside of the penis and becomes swollen and engorged with bloood during sexual arousal.                                                                The highest point of sexual arousal which is characterized by sensations of    pleasure as well as being accompanied by various behavioral and physiological  changes. See also orgasm.                                                      Located in the uper portion of the female vulva, just above the urethral       opening, the clitoris is a small protrusion of flesh which is highly endowed   with nerve endings and is extremely sensitive to stimulation.                  A slang term which refers to a gay male who does not openly admit to his sexualorientation.                                                                                                                                                  A slang term which refers to the penis.                                                                                                                                                                                                      A slang term which refers to a gay male.                                                                                                                                                                                                     A sexual behavior which consists of the insertion of the penis into the vagina;male-female intravaginal intercourse.                                                                                                                         The behavior which consists of the withdrawl of the penis from within the      vagina immediately prior to orgasm and ejaculation of semen.                                                                                                  The behavior which consists of male-female intravaginal intercourse in which   male ejaculation is suppressed intentionally.                                                                                                                 The agreed upon exchange of sexual partners who are both married, or agreed    upon extramarital sexual relationships. This term has been commonly referred toas "swinging".                                                                 When used as a verb "to come" is a slang term which refers to the act of havingan orgasm or climax. When used as a noun "come" refers to that which is        ejaculated during a male's orgasm; semen.                                      A term which refers to the open acknowledgement of an individual's homosexual  orientation.                                                                                                                                                  A deep sense of affection in which each member involved receives a greater     sense of self-esteem and satisfaction with life from others with whom their    life is intertwined.                                                           A legal term which refers to a woman who lives with a man and fulfills the roleof a wife without a legal contract of marriage.                                                                                                               A contraceptive device that is placed over and around the stiff penis. A condomis usually composed of rubber or lamb gut, and is intended to prevent sperm or semen from entering directly into the vagina.                                  Associated with or existing at the time of birth. Something which is congenitalis not necessarily inherited genetically.                                                                                                                     A term which refers to anything of or relating to the state of being married.                                                                                                                                                                Also known as Consensual Adult Statutes, this term refers to a group of legal  statutes that make sexual behavior between consenting adults, which occurs in  privacy, legal.                                                                The behavior of maintaining a high degree of self-restraint in response to     material and sexual desires; the state of being in control of one's own sexual desires.                                                                       The utilization of any device, drug or behavioral method which allows for      male-female intravaginal intercourse while preventing conception and/or        pregnancy.                                                                     A state in which an individual strongly desires to be transformed into the     opposite sex through surgical and chemical intervention.                                                                                                      A technical term which refers to the behaviors which precede sexual            intercourse; foreplay.                                                                                                                                        A form of psychotherapy which is directed at the goal of changing an individualwhose sexual orientation is homosexual to a heterosexually oriented individual.                                                                               A sexual variation in which an individual derives sexual gratification from theact of defecation. Sexual behavior in which gratification is derived from      interaction with feces.                                                        The behavior involving the insertion of the penis into the vagina; sexual      intercourse; coitus.                                                                                                                                          When used as a verb "to cornhole" is a slang term which refers to the sexual   behavior of penile-anal intercourse.                                                                                                                          Also known as the corona glandis, this term refers to the raised or elevated   ridge which surrounds the base of the glans of the penis.                                                                                                     Two cylindrical structures of erectile tissue which span the length of the top of the penis in the male and the clitoris in the female. These structures      become swollen and engorged  with blood during sexual arousal.                 The yellowish mass of cells which develops inside the cavity of the graafian   follicle subsequent to the release of the ovum. The corpus luteum produces     the hormone progesterone and continues to do so if pregnancy occurs.           Two miniscule glands which flank the urethra in the abdomen of the male.       They function by secreting a mucous-like fluid directly into the urethra       during sexual arousal with the purpose of neutralizing acidity and lubrication.Also known as pediculos pubis, crabs is a slang term for a skin irritation     caused by infestation of the pubic area by crab lice. Itching results from     bites which can be treated using over the counter solutions from a pharmacy.   Also known as the cremasteric muscles, this term refers to striated muscles    which are located in the scrotal sac and elevate the testes when               contracted. Sexual stimulation causes contraction of these muscles.            A variation of hymen structure which is characterized by several openings into the vaginal canal.                                                                                                                                            A slang term which refers to behaviors which enhance the probability of a gay  person meeting and having sexual relations with another gay person. This       includes frequenting gay bars, organizations, and bath houses, etc.            A term which refers to a man whose wife is sexually unfaithful.                                                                                                                                                                              The behavior of orally stimulating the vulva or female genitals of the sexual  partner.                                                                                                                                                      A slang term which refers to the female's vagina.                                                                                                                                                                                            A generic term for the chemical compound known as medroxyprogesterone          acetate (MPA). This artificially manufactured progestin hormone is purported todecrease sexual desire. It's primary use is intended for birth control.        A substance available in stores which vend sexual paraphenalia. The proposed   function of this ointment is to delay ejaculation. The ointment is applied to  the glans (head) of the penis.                                                 When used in reference to sexual anatomy, this term refers to the return of an organ, either an erect penis or engorged clitoris, to its original resting     state after sexual arousal has subsided.                                       A contraceptive device which is spherical and composed of rubber. It is        positioned over the cervix before penile-vaginal intercourse.                                                                                                 A slang term which refers to the penis.                                                                                                                                                                                                      Commonly known as the "morning after pill", DES is used as a birth control     method to guard against fertilization of the ovum following sexual intercourse without the use of contraceptives; a concentrated form of estrogen.            Also known as the D&C method, this term refers to a procedure in which the     fetus is aborted through the scraping of the walls of the uterus with a        surgical instrument known as a curette after the cervix has been dilated.      A device which is shaped like a penis and may be used as a penis substitute forvaginal or anal insertion.                                                                                                                                    When used as a verb "to do somebody" is a slang term which refers to the       behavior of sexual intercourse or oral stimulation of the genitals.                                                                                           Also known as D&S, this term refers to a subset of behaviors in which sexual   gratification is derived from enactment of clearly defined roles in which one  partner consistently or alternately directs the behavior of the other.         "The dose" is a slang term which refers to the sexually transmitted disease    known as gonorrhea.                                                                                                                                           A doctrine or code of beliefs which sets different standards of behavior for anindividual based on their sex.                                                                                                                                When used as a verb "to douche" refers to the act of cleansing the inside of   the vagina with water, vinegar or a variety of store bought liquid solutions.  Douching is usually performed for medicinal or hygenic purposes.               Also known as trisomy 21, this term refers to a genetic disorder in which thereare three instead of two #21 chromosomes. This results in mental and physical  disabilities. Women over 45 are at a higher risk of conceiving such a baby.    A slang term which refers to the clothing worn by the sex opposite to that for which it was fashioned.                                                                                                                                       A slang term which refers to a gay male who wears clothing fashioned for       females for part or all of the time.                                                                                                                          "The drip" is a slang term which refers to the sexually transmitted disease    known as gonorrhea. The slang term was derived from one of the symptoms of     gonorrhea which is a thin, white, mucous-like discharge from the urethra.      An orgasm which occurs without semen being ejaculated through the penis.       See also retrograde ejaculation.                                                                                                                              A slang term which refers to a female homosexual or lesbian.                                                                                                                                                                                 The experience of cramping, pain, or general discomfort which accompanies or   precedes menstruation. Dysmenorrea is a common symptom in pre-menstrual tensionsyndrome.                                                                      Sexual intercourse which is experienced with pain or physical discomfort.      This term is more commonly used in reference to women who feel discomfort      during coitus.                                                                 When used as a verb "to eat somebody" is a slang term which refers to the      sexual behavior of orally stimulating the genitals of a sexual partner.                                                                                       When used as a verb "to eat somebody out" is a slang term which refers to the  sexual behavior of orally stimulating the genitals of a female; cunnilingus.                                                                                  When used as a verb "to eat pussy" is a slang term which refers to the sexual  behavior of orally stimulating the female genitals; cunnilingus.                                                                                              A sexual variation in which an individual derives sexual gratification or      becomes sexually aroused by listening to others engaging in sexual activity.                                                                                  A variation in pregnancy in which the fertilized egg implants and develops     in structures which lay outside of the uterus. Examples of ectopic pregnancies are ovarian and abdominal pregnancies.                                         This term refers to the temporary structural changes which the cervix undergoesprior to and during childbirth. These changes are visible in the flattening andelongation of the cervix.                                                      Of or pertaining to feminine characteristics when they exist in a male.                                                                                                                                                                      This term refers to a category of male sexual dysfunction commonly known as    premature ejaculation. Premature ejaculation is the act of ejaculating before  or immediately after penetration and/or satisfaction of both partners.         The forceful and rhythmic ejection of semen through the urethral tube and out  the opening of the penis. Ejaculation usually occurs during orgasm.                                                                                           A term which refers to the inability to experience sensations of pleasure or   release of sexual tension with orgasm or ejaculation; a state in which         ejaculation is experienced as painful or displeasing for a variety of reasons. A sexual dysfunction in which a male is unable to ejaculate during intravaginalintercourse. Also referred to as ejaculatory incompetence.                                                                                                    This is a psychoanalytic term which refers to strong feelings of affection and attraction of a female child for her father. The electra complex has been      regarded as the female analog to the oedipal conflict in males.                To take away or deprive a male of his masculine characteristics. Removal of themale testicles.                                                                                                                                               A stage in prenatal development which occurs between fertilization of the ovum and the end of the first trimester or twelfth week of pregnancy.                                                                                              When used in reference to sexual behavior and anatomy, this term refers to the release or discharge of semen from the penis under direct or indirect sexual   stimulation. Indirect stimulation might be arousal which occurs during dreams. This term collectively refers to a system of glands which secrete their        products directly into the blood stream without passing through ducts. The     products of endocrine glands are known as hormones.                            A marital contract between two people who are related by blood. Examples of    endogamy are marriage and inbreeding within family, tribal or clan members.                                                                                   A condition in which the endometrial layer, or the innermost lining of the     uterus, proliferates in areas outside of the uterus. This abnormal growth of   endometrial tissue can affect organs located in the pelvic cavity.             This term refers to the behavior of a male who chooses to take on feminine     characteristics. Eonism may involve a varying degree of cross-dressing (a male dressing as a female).                                                         A surgical procedure in which an incision is made in the area between the      bottom of the vagina and the anus to aid passage of the child through the birthcanal during childbirth.                                                       This term refers to a category of sexual dysfunction in which a male is unable to have or keep an erection which will enable him to engage in sexual          intercourse and other sexual behaviors requiring an erection; impotence.       A sexual dysfunction which is characterized by a male's inability to have an   erection. This category is used for men who have never been able to have an    erection as well as those who experience it currently, but not in the past.    The engorgement of the erectile tissues of the penis with blood causing        tumescence or a stiffening and lengthening of the penis or clitoris.                                                                                          Any area or part of the body which is capable of being stimulated with the     result of sexual arousal. The most common erogenous zones are the genitals as  they are most sensitive to sexual stimulation.                                 This term refers to anything of or pertaining to the quality of being sexually arousing or having the potential to be sexually arousing.                                                                                                     This term refers to those people who are characterized by an insatiable sexual appetite. This is known as satyriasis when it occurs in men and nymphomania    when it occurs in women.                                                       A group of hormones which play an influential role in the maintenance of the   menstrual cycle and development of the reproductive organ structures in        females. Estrogen is produced in greatest quantity by the ovaries.             A male whose gonads (sex glands or testes) have been removed.                                                                                                                                                                                Removal of the male gonads; to take away a male's virility. The sexual behaviorof a male who takes on feminine traits during sexual activity.                                                                                                The initial phase of a four phase description of the sexual response cycle     which was studied in the laboratory by Masters and Johnson.                                                                                                   This term refers to a variation of sexual behavior in which a person, usually amale, derives sexual gratification through exposing his/her genital organs to  others (usually strangers), at inappropriate times and/or places.              The second of two stages which characterize male orgasm. During the expulsion  phase, seminal fluid is ejaculated or propelled through the urethra by         involuntary, rhythmic, muscular contractions.                                  Of or pertaining to something which occurs outside of a marital contract or    relationship. An example of this would be an extramarital relationship         involving two people at least one of whom is married.                          When used in reference to sexual orientation, this is a slang term which refersto a male homosexual. The usage of the word "faggot" is often abbreviated as   "fag".                                                                         A slang term which refers to a gay male. The term is also used to refer to a   heterosexual male who is effeminate.                                                                                                                          Also known as the oviducts, these are two ducts which originate directly       adjacent to the ovaries and travel to a point where they widen and become      continuous with the uterus. Ova are often fertilized in the fallopian tubes.   When used in reference to sexual content, this term connotes a thought or a    group of thoughts with explicit sexual or sexually stimulating content.                                                                                       The behavior of orally stimulating the penis of a sexual partner.                                                                                                                                                                            An ejaculatory type phenomenon which occurs in a small percentage of women. It results in the expulsion of a fluid from the Skene's ducts of the female vulva.Current disputes exist over the chemical composition of the female "ejaculate".When used in reference to sexual orientation, "femme" is a slang term which    connotes a female homosexual who prefers to play a more passive rather than    active sexual role or a gay male or lesbian who is feminine in appearance.     A sexual behavior which is characterized by the placement of the penis in      between the thighs of the sexual partner. Femoral intercourse is more common   amongst homosexual males than heterosexual males.                              Having the ability to produce offspring.                                                                                                                                                                                                     In humans and other animal species, this term refers to the merging of a ripe  ovum from the female and a mature sperm from the male. The fertilized egg is   known as a zygote.                                                             A syndrome which has multiple symptoms and affects infants born to mothers who consume excessive amounts of alcohol during gestation. These symptoms include  both physical and intellectual disabilities.                                   A category of sexual variations which is characterized by a strong affection   for an inanimate object or an obsession with a particular body part. Fetishistsderive their primary sexual gratification from interaction with these objects. The prenatal infant is known as a fetus during the developmental period which  is marked by the last two trimesters of pregnancy. Technically, the unborn     infant is known as a fetus from the third month of pregnancy until birth.      A type of sexual position which is also referred to as the half-frontal coital position.                                                                                                                                                     When used as a noun "flit" refers to a male homosexual. A heterosexual or      homosexual male who is effeminate.                                                                                                                            When used in reference to reproductive anatomy, a follicle connotes the        capsular structure which forms on the surface of an egg producing ovary. This  structure contains a growing ovum which is released when the follicle bursts.  This term collectively refers to the group of sexually oriented behaviors whichprecede sexual intercourse. Examples are oral and manual manipulation of the   genitals by sexual partners.                                                   Also referred to as the prepuce of the penis or clitoris, this term connotes   the flap or fold of skin which overlays the penis or clitoris that has not beencircumcised. The prepuce of the clitoris is also known as the clitoral hood.   This term is most commonly used in legal terminology to describe a situation inwhich heterosexual intravaginal intercourse occurs between sexual partners who are not bound by marital contracts to each other or anyone else.               When used as a verb "to french kiss somebody" is a common term which refers to the behavior of two partners who press together their open mouths and caress   one another's tongue. French kissing is not a culturally universal practice.   This term refers to the part of the penis which is located on the underside of the glans penis. It is a very thin piece of skin which connects the prepuce of the penis to bottom of the glans penis.                                        When used as a verb "to frig somebody" is a slang term which refers to the     sexual behavior of heterosexual intercourse.                                                                                                                  A term which is commonly used for a woman who is not responsive to sexual      stimulation; a woman who is unable to derive sexual gratification.                                                                                            This term refers to a category of sexual variation which is characterized by anindividual who derives sexual gratification from the behavior of rubbing or    bumping up against others. Frottage usually occurs in crowded places.          A slang term which refers to a gay male. This term is also used to refer to a  heterosexual male who is effeminate.                                                                                                                          When used as a verb "to fuck" is a slang term which refers to the behavior of  sexual intercourse.                                                                                                                                           A stage of prenatal development which follows the blastula phase. During this  embryonic phase, the single layered blastula has evolved into a double layered hollow spherical structure of cells.                                           In its current usage, this term refers to a male homosexual. The term may also be used to refer to both male and female homosexuals but it is most commonly   used in reference to male homosexuals.                                         A movement which involves the membership of all homosexual men and women who   are concerned with the legal rights, civil rights, and overall welfare of the  gay community. It is an activist organization with a flexible structure.       This term refers to the sex of an individual. The sex is determined by the     combination of sex chromosomes and is fixed at the time when the ovum is       fertilized by a sperm cell. An xx combination leads to a female; xy to a male. This term refers to an individual's conception of him/herself as being a man ora woman. Despite beliefs that gender identity is fixed at birth, research has  shown that gender identity is influenced by early childhood experience.        A category of psychological disorder which is characterized by an individual's aversion to his/her biologically inherited sex, and a strong desire to be a    member of the opposite sex.                                                    This term collectively refers to behavior which is exhibited by males and      females which is not consonant with a cultural doctrine of stereotyped male andfemale roles.                                                                  This term generally refers to an individual's view of themself and their       behavior as being masculine or feminine. One's gender role is strongly         influenced by the culture's beliefs about appropriate male and female behavior.A gene is considered to be the biological unit which contains the genetic or   inherited information. The information which is passed on from generation to   generation is coded within the structure of the genes.                         A technical term for the sexual behavior of mutual stimulation of partners'    genitals. The genitals of one partner are rubbed against the genitals of       another partner without engaging in coitus.                                    A sexually transmitted disease which is characterized by blister-like lesions  located on and around the genitals or areas which have come into contact with  genitals which are infected. The infecting organism is a virus; herpes type 2. A Freudian term which refers to the most advanced stage of psychosexual        development. Men and women who have reached this ultimate stage are said to    have replaced immature modes of sexual gratification with genital intercourse. Growths on the genitals due to a viral infection by the organism known as      Condylomata Acuminata. These warts flourish in a warm moist area such as the   genitals. Both chemical and surgical interventions are used to treat the warts.This term collectively refers to the reproductive organ structures of both     males and females. Internal genitalia refer to reproductive organ structures   which exist inside the body and external genitalia are visible to the eye.     A fear of coitus which is out of proportion to reality.                                                                                                                                                                                      This term refers to the reproductive or sex cells which are also known as      gametes. In men these are referred to as sperm. In women, germ cells are       commonly referred to as ova or egg cells.                                      A sexual variation in which a younger individual actively seeks out much older partners to engage in sexual activity. The gerontophiliac is unable to derive  his/her primary sexual gratification from similar aged peers.                  A man who solicits sexual services to women; a male prostitute.                                                                                                                                                                              When used as a verb "to give head" is a slang term which refers to the sexual  behavior of orally stimulating the genitals of the partner.                                                                                                   The glans of the penis (glans penis) is a cone shaped structure at the head of the penis which is richly endowed with nerve endings. The glans clitoris, also rich in nerve endings, is the female counterpart of the male glans penis.      When used as a verb "to go down on somebody" is a slang term which refers to   the behavior of orally stimulating the genitals of the partner.                                                                                               This term is also referred to as the sex or reproductive glands. In the female,the gonads are referred to as the ovaries. In the male, they are referred to astestes. The primary function of the gonads is to produce sex cells (gametes).  Gonadotropins are a class of hormones which influence the growth, development  and productivity of the testes and ovaries.                                                                                                                   A sexually transmitted disease which is the most commonly diagnosed sexually   contracted disease in the united states. The infectious organism is a bacteriumknown as Neisseria Gonorrhea. See also "drip"; "dose".                         Also known as the "G-spot", this term refers to an area on the inside, front   wall of the vagina. Some women report intense sexual arousal when this area is stimulated. Its existence in all or any women is currently a disputed topic.   A situation in which a genetic female develops traits which are characteristic of a male. Such a woman is also referred to as a female pseudohermaphrodite                                                                                   A birth defect which is characterized by a fusion of the vulval tissue so that the vaginal orafice is externally blocked.                                                                                                                    A physician who specializes in the practice of medicine directed at the        treatment and maintenance of the female genital and reproductive organ systems.                                                                               A physiological disorder which is characterized by the growth of female        appearing mammary glands (breasts) in a genetic male.                                                                                                         A chemical which is found on the surface of cells in embryonic males before    differentiation of the sex glands. This antigen influences the undifferentiatedgonads to develop into the male sex glands or testes.                          When used as a noun "hard on" is a slang term which refers to an erect penis.                                                                                                                                                                A biblical term which refers to a female prostitute.                                                                                                                                                                                         A deterministic philosophy which proposes pleasure seeking as a way of life.                                                                                                                                                                 This term refers to the process by which genetic traits are passed on from     generation to generation. The biological units of heredity are referred to as  the genes which are located on the chromosomes.                                A true hermaphrodite is characterized by posession of both male and female sex glands. A male hermaphrodite posesses testes and feminine or mixed external    genitalia. Female hermaphrodites have ovaries and masculine or mixed genitalia.There are two types of herpes: type 1 herpes and type 2 herpes. Type two herpesor herpes simplex type 2 virus is also known as genital herpes as it is        sexually transmitted. Both types result in painful blister-like sores.         An individual whose sexual preference is for the opposite sex; a person who    seeks and derives sexual gratification from a member or members of the oppositesex.                                                                           A situation in which there is an excess production of body and facial hair. In women, hirsutism may be produced as a result of excess levels of androgens.                                                                                   Of or relating to sexual activity between individuals of the same sex. See alsohomosexuality.                                                                                                                                                Someone who associates with the gay and lesbian communities and supports their struggle for equal rights. A homophile is not necessarily a homosexual. For    example, Parents of Gay Children is an organization of homophiles.             This term refers to a fear of homosexuality which is out of proportion to      reality. A homophobic's fears are often psychodynamically related to his/her   own fear of being homosexual.                                                  A term which collectively refers to the sexually oriented behavior or general  sexual orientation of an individual who is attracted to, or engages in sexual  activity with, a person of the same sex.                                       A preference for social interaction with members of the same sex. Homosocial   should not be confused with homosexual.                                                                                                                       This term collectively refers to a group of chemical substances which are      secreted by a system of ductless glands known as the endocrine system. Hormonesaffect the growth and development of reproductive structures and physiology.   When used as an adverb "horny" is a slang term which describes an individual's desire for sexual activity.  Derived from oriental practice of using ground    rhinoceros horn as an aphrodisiac.                                             This term collectively refers to all physiology, behaviors, and issues related to human reproduction and sexual expression.                                                                                                                  When used as a verb "to hump" is a slang term which refers to the behavior of  rubbing one's genitals against an object or a body part of the sexual partner. The term is also used to describe sexual intercourse.                          A slang term which refers to a male prostitute who solicits sexual interaction to male homosexuals.                                                                                                                                          This term refers to an anatomical structure in the female which is             characterized by a delicate membrane covering the vaginal opening in most      virgins who have not been vaginally penetrated.                                A state characterized by constant and intense sexual desire. In men            hypersexuality is also known as satyriasis. In women, hypersexuality is        referred to as nymphomania.                                                    A surgical procedure which entails the removal of the uterus.                                                                                                                                                                                A category of sexual dysfunction in which a male is unable to achieve or       maintain an erection long enough to engage in sexual intercourse.                                                                                             This term refers to sexual interaction between members of the same family who  are closely related by blood lineage. The definition of what constitutes an    incestuous relationship differs from culture to culture and state to state.    A culturally universal doctrine which prohibits sexual contacts between certainmembers of the same family, tribe, or clan.                                                                                                                   A term which refers to the murder of an infant. In some cultures, especially   those afflicted by harsh environmental conditions, extremely weak and deformed newborns are intentionally murdered.                                           This term refers to a disease caused by a viral organism which attacks the     immune system (the lymph glands, in particular).                                                                                                              A state in which a couple is unable to conceive a child despite repeated       (usually over a period of one year) attempts through coital activity without   the use of contraceptives.                                                     When used in reference to conceptualizations of homosexuality which are based  on heterosexual stereotypes, an insertee is a male homosexual who anally       receives the penis of his partner; a "passive" homosexual male.                When used in reference to conceptualizations of homosexuality which are based  on heterosexual stereotypes, an insertor refers to a male homosexual who       inserts his penis into the anus of his partner; an "active" male homosexual.   Heterosexual intercourse involves the insertion of the penis into the vagina.  Anal intercourse involves the insertion of the penis into the anus of the      sexual partner. See also interfemoral intercourse.                             Also known as femoral intercourse, interfemoral intercourse refers to the      sexual behavior of inserting and rubbing the penis between the thighs of the   sexual partner.                                                                Any situation or occurrence which is characterized by interaction between two  or more people.                                                                                                                                               The computer program for sex. A discussion of sex.                                                                                                                                                                                           Of or pertaining to behavior or phenomena that occur within one individual.                                                                                                                                                                  The intrauterine device (IUD) is a birth control apparatus. The IUD is placed  in the uterus by a gynecologist or a nurse practitioner. There have been recentclinical disputes over the safety and effectiveness of intrauterine devices.   This term refers to the sexual behavior of inserting the erect penis into the  vagina of the sexual partner; penile-vaginal intercourse.                                                                                                     This term refers to the meatus (opening) of the vagina.                                                                                                                                                                                      When used in reference to sexual orientations, an invert connotes an           individual who prefers members of his/her own sex as sexual partners. See also homosexual.                                                                    The behavior of orally stimulating the penis of a sexual partner; fellatio.                                                                                                                                                                  An abbreviation for inhibitions of sexual desire. This term refers to a        category of sexual dysfunction in which an individual has never had, or has    lost, desire for sexual interaction with certain or all sexual partners.       When used as a verb "to jack off" is a slang term which refers to the sexual   behavior of self-stimulation of the genitals; masturbation.  Synonymous with   "jerk off."                                                                    A slang term which refers to a house of prostitiution which employs male       prostitutes who provide sexual services to a clientele of male homosexuals.                                                                                   When used as a verb "to jerk off" is a slang term which refers to the sexual   behavior of self-stimulation of the genitals; masturbation.                                                                                                   A common term for a fungal infection known as Tinea Cruris. This fungus lives  especially well in warm, moist environments such as that found between the     thighs and genital regions.                                                    A slang term for a male client of a female prostitute.                                                                                                                                                                                       Kaposi's sarcoma (KS) is a prominent symptom diagnosed in victims of           acquired immune deficiency syndrome (AIDS). KS is classified as a variety of   skin cancer.                                                                   This term refers to a prolonged act of sexual intercourse. Karezza is          technically referred to as coitus reservatus or coitus in which ejaculation is intentionally withheld.                                                        Of or pertaining to sexual activity which occurs between a human and a nonhumananimal.                                                                                                                                                       A series of exercises intended to strengthen the vaginal musculature. Research is currently being done which investigates the relationship between doing Kegelexercises, the ability to reach orgasm, and female ejacaculation.              A chromosomal abnormality which results in an individual with an extra sex     chromosome. The abnormal sex chromosome configuration is xxy. These individualshave a male body structure with small or underdeveloped reproductive anatomy.  A sexual variation in which an individual derives primary sexual gratification through receiving or administering enemas.                                                                                                                    When used as a verb "to knock up" is a slang term which refers to a pregnancy  resulting from intercourse which occurred out of wedlock.                                                                                                     The larger outer folds surrounding the vaginal opening. The labia majora are   sometimes referred to as the outer lips of the vagina. During sexual arousal   these tissues become temporarily engorged with blood.                          The inner pair of tissue folds which surround the vaginal opening. The labia   minora are sometimes referred to as the inner lips of the vagina. During sexualarousal these lips become engorged with blood and become red or purplish red.  The process by which a mother's milk develops and is dispensed through the     nipples of the mammary glands (breasts). Lactation is sometimes referred to as milk letdown.                                                                  An alternative method of childbirth which involves the following of a          curriculum by both parents. Parents attend classes together and are trained in birthing procedures.                                                           A variety of seaweed which, when inserted into the cervical area, causes the   dilation of the cervix. Laminaria is occasionally employed to dilate the cervixof a woman who is undergoing an abortion.                                      A surgical birth control procedure in which the fallopian tubes are accessed   and cut after a small incision has been made through the abdominal wall.       Laparotomy is also known as laparoscopic or "band-aid" sterilization.          Having the quality of inducing sexual desire. Of or pertaining to sexual       behavior; lewd.                                                                                                                                               Of or pertaining to an individual who engages in an extremely high frequency ofsexual behavior; an individual whose behavior is directed by sexual desire.                                                                                   A common term used in reference to a female homosexual.                                                                                                                                                                                      A hormone which is produced by the anterior portion of the pituitary gland.    Leutenizing hormone (LH) influences ovulation and the corpus luteum's          production of progesterone in women. In men, it stimulates androgen production.Also referred to as the interstitial cells which are located in the male       testes. Leydig's cells are responsible for the manufacture of the majority of  androgen in males.                                                             A slang term which refers to a lesbian; female homosexual.                                                                                                                                                                                   An abbreviation for Lymphogranuloma Venereum. This is a sexually transmitted   disease which attacks the lymph glands of the immune system around the         genitals. LGV is rare in the U.S. and is treated using sulpha or tetracycline. A Fruedian term which refers to an innate sexual energy from which all human   productivity is derived; The energy which powers one's sexual drive.                                                                                          A position which signals sexual receptivity in most nonhuman mammals. The      position is characterized by setting on all four limbs and arching the spine toelevate the hind quarters for facilitated vaginal entry.                       A term which refers to the behavior characteristically associated with         being male. For example strength, virility, bravery, and sexual prowess are    traits which characterize machismo behavior.                                   An anatomical anomaly which is characterized by the abnormal enlargement of oneor both breasts.                                                                                                                                              An anatomical anamoly characterized by an abnormally large penis.                                                                                                                                                                            A common term used in reference to the anatomical structure in the female knownas the hymen. See hymen.                                                                                                                                      When used as a verb "to make somebody" is a slang term which refers to the     behavior of sexual intercourse.                                                                                                                               Also referred to as the male climacteric, this is a stage in which a set of    physiological and psychological changes take place as a result of decreased    androgen (testosterone) production and aging in males.                         A procedure in which the breasts are examined through use of X-rays to         determine the nature of an abnormality which is subcutaneous (under the skin).                                                                                When used in reference to sexual orientation, masochism refers to a sexual     variation which is characterized by an individual who derives sexual           gratification from pain inflicted on the self by the self, or a sexual partner.A surgical procedure which entails the removal of the entire or part of the    breast due to cancer of the breast or other medical complications. A lumpectomyrefers to the removal of a cancerous lump in the breast.                       The sexual behavior of self-stimulation of the genitals. See also              autoeroticism.                                                                                                                                                A long term relationship between individuals, not necessarily married, which ischaracterized by the sharing of sexual, social, and religious activities, as   well as financial resposibilities.                                             The opening to an anatomical organ. For example, the urethral meatus in males  is the opening through which urine and semen are expelled from the penis.                                                                                     The process by which ova and sperm are produced. This process is also known as cellular reduction division in which cells containing 46 chromosomes result in cells containing 23 chromosomes.                                               A sexual relationship between three people, two of whom are married, all of    whom are living together.                                                                                                                                     This term refers to the onset of menstrual functioning; the first menstrual    period in a female.                                                                                                                                           The termination of menstrual functioning in a middle-aged woman. Menopause is  also known as the climacteric which is characterized by a set of physiological and psychological changes accompanied by a reduction in hormone production.    Menstrual flow which occurs over an abnormally prolonged period.                                                                                                                                                                             Also known as menstruation or menstrual flow, this term refers to the period inthe menstrual cycle characterized by the flow of menstrual liquid.                                                                                            Abdominal pain which may affect a woman immediately prior to or during the     onset of the monthly menstrual flow. Many doctors recommend application of a   heating pad to the abdomen when such cramping occurs.                          A cycle which commonly lasts from 24 to 32 days. The menstrual cycle can be    divided into three stages. The destructive phase (shedding of the endometrium),the follicular phase (growth of ova) and luteal phase (growth of endometrium). The flow of menstrual fluid which may contain the unfertilized ovum,           endometrial tissue, and blood.                                                                                                                                An anatomical abnormality which is characterized by an extremely small penis.                                                                                                                                                                A person whose profession is to aid women in the delivery of their children.                                                                                                                                                                 The birth of an infant before it has the the capability to survive outside the sheltered uterine environment. A miscarriage is also referred to as a          spontaneous abortion. Miscarriage is more common in a woman's first pregnancy. Sexual activity which occurs between members of different ethnicities. For     example, sexual intercourse between a caucasian woman and an oriental man.                                                                                    The state of being against the institution of marriage; an extreme dislike for marital relations or marital contracts.                                                                                                                       Any individual, male or female, who has an extreme dislike for women.                                                                                                                                                                        A variation in sexually oriented behavior which is characterized by an         individual who derives sexual gratification from viewing others engaging in    sexual intercourse.                                                            A vaginal irritation caused by a fungal infection which is also known as       moniliasis or candidiasis.                                                                                                                                    The marital structure by which one man has one and only one wife.                                                                                                                                                                            A situation in which a male is married to one female at any point in time.                                                                                                                                                                   An infectious disease which has multiple symptoms including chronic fatigue or a general lack of physical energy. The virus mainly affects the lymph glands ofthe immune system.                                                             An anatomical anamoly which is characterized by a male who only posesses one   testicle in the scrotal sac due to a failure of one testicle to descend into   the scrotum, or because only one testicle has developed.                       A syndrome which affects women during the beginning of pregnancy. This syndromeis characterized by nausea and regurgitation upon awakening, and/or during the morning hours.                                                                 A pill method of birth control which contains diethylstilbesterol (DES). This  pill contains a highly concentrated synthetic estrogen which prevents pregnancyfor a period of a few days following unprotected sexual intercourse.           A system of embryonic ducts which eventually evolve into the female            reproductive system.                                                                                                                                          This term refers to a female who has given birth more than once.                                                                                                                                                                             Orgasms which occur in succession without a refractory period over a single    period of sexual stimulation. A common misconception is that only women have   the ability to have multiple orgasms. The phenomenon occurs in both sexes.     A sexual activity which is characterized by sexual partners self-stimulating   their genitals in the presence of each other.                                                                                                                 A state characterized by an individual who posesses an excessive amount of lovefor, or preoccupation with, aspects of the self.                                                                                                              A category of sexual variation in which a heterosexual individual depends on   listening to or reading sexually explicit material in order to derive sexual   gratification.                                                                 This term collectively refers to a set of alternative methods of childbirth    such as the Leboyer and Lamaze methods of childbirth. In general, these methodsemphasize a smooth transition from the womb to the external world.             An extreme variation of sexual behavior in which an individual derives sexual  gratification from the viewing of, or coitus with, a corpse.                                                                                                  The strain of bacteria which is the infecting organism in the sexually         transmitted disease known as gonorrhea.                                                                                                                       A variety of syphilis which infects the brain and other parts of the nervous   system. If left untreated, neurosyphilis is fatal.                                                                                                            An organism which has no genitic sex or poorly defined anatomical sexual       characteristics. An animal which has been neutered has had their sex glands    removed.                                                                       An abbreviation for a sexually transmitted disease known as Nongonococcal      Urethritis. Infection by microorganisms other than that which causes gonorrhea result in inflammation of the urethra in both men and women.                   The implantation of the fertilized ovum in the endometrium (inner lining of theuterus) in an early stage of pregnancy.                                                                                                                       Also referred to as a "wet dream", this term connotes a male ejaculation which occurs while the individual is asleep.                                                                                                                        Signs of sexual arousal which occur while a female is asleep. These signs are  clitoral tumescence, vaginal lubrication, and vasocongestion resulting in      engorgement of the labial and vaginal tissues.                                 A variety of vaginitis which has multiple symptoms which are typical of        the syndrome, but for which an infecting organism or causative factor can not  be found.                                                                      An abbreviation for nocturnal penile tumescence; an erection in males while    sleeping.  Often used as a definitive measure of physical versus psychological impotence.                                                                     This term is most commonly used to refer to a female who is of an age to be    married and have sexual relations.                                                                                                                            A doctrine which is characterized by individuals who believe that clothing     should be discarded whenever possible. Nudists often congregate at nudist      retreats or camps.                                                             A slang term which refers to the male sex glands (testes).                                                                                                                                                                                   A young girl who is sexually well developed and capable of arousing sexual     desire in men.                                                                                                                                                A variation in sexual behavior in females which is characterized by an         excessive, intense and continuous desire for, or frequency of, sexual activity and/or intercourse.                                                            A Freudian concept which entails the sexual desire of a son for his mother.    Freud believed that this complex must be resolved in order for an individual   to become psychosexually mature. See also Electra complex.                     The behavior of withdrawing the penis from the vagina prior to ejaculation of  semen. This term is commonly referred to as the withdrawl method of birth      control. It is one of the least effective methods of contraception.            A female germ cell (ovum) which is not ripe nor ready to be fertilized.                                                                                                                                                                      A surgical procedure which entails the removal of the female sex glands (the   ovaries); female castration.                                                                                                                                  A legal marriage in which both partners have reached a consensual agreement to engage in sexual relationships both within, and outside of, the marriage.                                                                                     Sexual gratififation derived from stimulation of the oral anatomy (lips, mouth and tongue).                                                                                                                                                  The sexual behavior of orally stimulating the genitals of the sexual partner.  If performed on a male, it is referred to as fellatio. When performed on a     female, it is referred to as cunnilingus.                                      A Freudian term referring to the first of four stages of psychosexual          development in which sexual gratification is derived from sucking and putting  various objects in the mouth or on the lips.                                   The technical name for the removal of the male sex glands (testes); surgical   castration of a male.                                                                                                                                         The highest point of sexual arousal which is characterized by an increase in   heart rate, blood pressure, pelvic muscular contractions, and the experience ofpleasure. Unlike female orgasm, male orgasm is followed by a refractory period.The third phase of the sexual response cycle which was studied in the          laboratory of Masters and Johnson in St. Louis. For the characteristics of thisstage, see orgasm.                                                             A category of sexual dysfunction in which a female is unable to achieve        an orgasm. If a female has been able to achieve an orgasm in the past, but can not currently experience one, it is termed as secondary orgasmic dysfunction.  When used in reference to sexual behavior, this term connotes a situation in   which there are multiple sexual partners engaging in a variety of sexual       behaviors together at the same time.                                           The female sex gland (gonad). Females posess two ovaries which produce female  gametes (ova) and chemical substances known as hormones which influence growth of sexual characteristics and maintenance of the menstrual cycle.              The release of a ripe ovum from the ovarian follicle inside which it           has developed.  Ovulation is triggered due to the influence of hormones.                                                                                      The female gamete or germ cell which is referred to as a "sex cell".                                                                                                                                                                         A hormone which is associated with uterine contractions during labor. Oxytocin is also released from the pituitary gland during female orgasm. For this reasonsome doctors advise women to avoid orgasm during the late months of pregnancy. A procedure, usually performed by a gynecologist, in which tissue cells are    procured from a female's cervix and analyzed for the growth of cervical        cancers.                                                                       A person who has a sexual relationship with someone who is committed to anotherrelationship; the sexual partner of a person who is married to someone else.                                                                                  A category of sexual variations which is characterized by the use of, or       dependency on, atypical or unacceptable objects or behavior in deriving sexual gratification.                                                                 A condition which is characterized by the swelling of the brain and tissues    surrounding the brain. This condition occurs in the late stages of syphilis andis commonly referred to as general paresis.                                    A feear of virgin females which is out of proportion to reality.                                                                                                                                                                             A situation in which an individual shows a preference for a specific body part which holds a high degree of sexual arousal value for him/her. For example,    when a male says, "I'm a breast man", this is an indication of partialism.     The actual process of being in labor or giving birth.                                                                                                                                                                                        A variety of love which is characterized by an intense romantic preoccupation  with, and affection for, a significant other.                                                                                                                 Of or pertaining to descendence from the male blood line.                                                                                                                                                                                    A slang term which refers to the penis.                                                                                                                                                                                                      The sexual behavior of homosexual anal intercourse.                                                                                                                                                                                          A skin condition which is characterized by itching and a rash-like irritation  of the pubic area as a result of the bites of crab lice (pubic lice).                                                                                         A individual who is characterized by an extreme affection and desire for sexualactivity with children.                                                                                                                                       A sexual variation which is characterized by an individual's extreme           affection and desire for sexual activity with children.                                                                                                       Examination of a female's reproductive anatomy by a gynecologist or a trained  physician. A pelvic exam is a standard part of a routine gynecological         examination.                                                                   Surgical implants which are placed in the penis of a man with primary erectile dysfunction which is biologically or anatomically based. Air is pumped into    these implants when an erection is needed to engage in sexual intercourse.     An instrument which measures the degree of erection in a penis. This instrumentis used in research on sexual dysfunction and sexual response cycles in the    male.                                                                          The sexual behavior of orally stimulating the penis. See also fellatio.                                                                                                                                                                      The male anatomical structure whose function is characterized by use in varioussexual behaviors such as oral, anal, and vaginal intercourse and masturbation. The penis also serves an eliminative function in urination.                    A situation in which the erect penis is tightly enveloped by the vaginal       musculature preventing its withdrawl. This phenomenon has been well documented in nonhuman species. Authorities question its existence in humans.             A raised ridge of skin between the anus and the vagina in women and between thescrotal sac and the anus of the male. A surgical incision may be made along    the perineum of a woman during childbirth to facilitate passage of the infant. An individual who engages in sexual behaviors which deviate from those which   are considered commonplace.                                                                                                                                   The sexual behavior of mutual touching of body parts. Examples of petting are  caressing the genitals and other erogenous zones manually or orally. Petting   consists of most sexual body contacts with the exclusion of sexual intercourse.The male anatomical structure used for various sexual and eliminative purposes.See also penis.                                                                                                                                               A variation in sexual behavior which is characterized by an individual who     derives primary sexual gratification from viewing pictures of nudes or         photographs of people engaging in sexual activity.                             An abbreviation for pelvic inflammatory disease which is characterized by the  swelling of tissues surrounding the pelvic cavity, including the uterus.                                                                                      A male who oversees the business transactions beween a prostitute and her      clientele.                                                                                                                                                    A gland which secretes a variety of hormones and hormonal releasing factors    which have their effects on the functioning of other endocrine glands and      target organs in the body.                                                     The anatomical structure which develops on the uterine wall and enables the    exchange of blood and nutrients from the mother to the child, as well as the   exchange of waste products from the child to the mother.                       The second phase of the sexual response cycle that was studied by Masters and  Johnson. This phase comes between the excitement and orgasm phases.                                                                                           A situation in which one female is married to two or more males at the same    time.                                                                                                                                                         A situation in which an individual is married to more than one other individualat one point in time.                                                                                                                                         A situation in which one male is married to two or more females at the same    point in time.                                                                                                                                                Sexually explicit materials (books, films, tapes, photographs, etc.) which are sold to individuals who use them to derive sexual gratification.                                                                                              When used in reference to male sexual functioning this term connotes the       ability to achieve an erection.                                                                                                                               Heterosexual intercourse which occurs between individuals who are not legally  married.                                                                                                                                                      A male sexual dysfunction which is characterized by a male's ejaculation beforea period of intercourse which is sufficiently satisfactory to both partners.   Ejaculation before or shortly after intromission. See ejaculatio praecox.      Also referred to as premenstrual tension syndrome, this term connotes a state  which is characterized by a set of emotional and physical discomforts which    precede menstruation by a period of two days to two weeks.                     A fold of skin which covers the glans of the penis or clitoris in uncircumcisedmales and females. The prepuce in females is sometimes referred to as the      clitoral hood; the male prepuce is commonly referred to as the foreskin.       A conditon which is characterized by the painful tumescence of the penis over  an abnormally long period of time without the experience of sexual arousal.                                                                                   A slang term which refers to the penis.                                                                                                                                                                                                      Sexual intercourse with the intent of producing offspring.                                                                                                                                                                                   A female steroid hormone which is primarily secreted by the corpus luteum      (yellow body). This hormone influences physiological processes which lead to   the growth of endometrial tissue, readying the uterus for ovum implantation.   A synthetically manufactured progesterone hormone. Progestin is the main       ingredient of the "minipill". Progestin may also be given to women during      pregnancy to prevent miscarriage.                                              The ideology of a group of individuals who believe that abortion is a form of  murder and that a pregnant woman should not have the choice to terminate the   life of a fetus as this would violate its right to life.                       A stage in the menstrual cycle which is characterized by the growth and        maturation of ovarian follicles which contain female germ cells (ova).                                                                                        Of or pertaining to behavior which is characterized by a high frequency of     sexual activity with a varying number of partners.                                                                                                            When used in reference to contraceptive devices, this term refers to a rubber  or animal gut sheath which is used to protect a male from contracting venereal diseases or impregnating his partner. See also condom.                         Hormones which have the potential to induce uterine contractions. Women seekingabortions during the period between the third and sixth month of pregnancy are often given prostaglandins to cause premature delivery of the fetus.           A gland at the base of the bladder through which the urethra passes. This glandsecretes a fluid which supplies the majority of the ejaculate or seminal fluid contained in a male ejaculation.                                               The vending of sexual services for money or financial gains.                                                                                                                                                                                 A condition in which a female has the characteristic symptoms of pregnancy     without being pregnant. This condition is commonly referred to as a false      preganancy.                                                                    An anatomical anamoly which is characterized by an individual who possesses thesex glands of one particular sex and the external genitalia of the opposite    sex.                                                                           A period in human development characterized by the onset of reproductive       capabilities. On the average, females reach puberty about two years earlier    than males.                                                                    A kind of louse which infests the genital regions of both men and women.       Irritation is caused due to the bites of these lice. Treatment is available in over-the-counter solutions and shampoos. See also crabs.                       A term which collectively refers to the anatomical structures comprising the   female external genitals.                                                                                                                                     A slang term which refers to the vagina.                                                                                                                                                                                                     A slang term which refers to an effiminate male homosexual.                                                                                                                                                                                  A slang term which refers to an individual with a homosexual orientation.                                                                                                                                                                    The behavior of making an individual engage in coital activity through force orthreat of force.                                                                                                                                              Also known as rape trauma syndrome, this refers to a condition of emotional    stress and disorientation which affects rape victims immediately or shortly    following the rape incident.                                                   A kind of love which develops over a number of years of having known and lived with someone. It is realistic in that it is based on information and feelings  which have evolved over a period of time and shared confidence.                A part of the intestinal anatomy which is located at the lower end of the largeintestine and opens into the anal orafice.                                                                                                                    A period which immediately follows orgasm in the male in which he is unable to have another orgasm. A refractory period does not exist in the female sexual   response cycle.                                                                The final phase the sexual response cycle studied by Master's and Johnson.     During this phase the physiological processes which indicate sexual arousal    return to their pre-arousal states and levels of functioning.                  A type of ejaculation which is characterized by the backward flow of seminal   fluid into bladder instead of outward through the urethra.                                                                                                    A therapy which is directed at the adjustment of homosexuals who wish to adopt heterosexual orientations and lifestyles. See also conversion therapy.                                                                                        This term collectively refers to a group of birth control methods which are    devised to aid the female in determining when she has ovulated in order to knowwhen to abstain from, and when it is safe to engage in sexual intercourse.     When used as a verb "to rim somebody" is a slang term which refers to the      sexual behavior of orally stimulating the anus of a sexual partner; analingus.                                                                                An intense preoccupation with a person who becomes somewhat deified by the     illusionary constructions of that person's qualities by the lover.                                                                                            When used as a verb "to rub off" refers to the behavior of female              self-stimulation of the genitals; female masturbation.                                                                                                        A sexual variation which is characterized by an individual who derives sexual  gratification from inflicting pain on, or watching others inflict pain on,     other individuals.                                                             Also known as S&M, sadomasochism is  the combined sexual variation of          alternating sadism and masochism; the behavior by which an individual derives  sexual gratification by giving and/or getting physical or emotional pain.      A variety of abortion used between the fifth and sixth months of               pregnancy in which a salt solution is injected into the amniotic sac. This     procedure causes expulsion of the fetus within a period of 1-2 days.           A rare sexual variation in which an individual, usually a man, derives         sexual gratification from defecating on females or feminine clothing.                                                                                         A term which refers to female homosexuality; lesbianism.                                                                                                                                                                                     A condition in males which is characterized by an intense and continuous desirefor sexual activity. In women, this condition is known as nymphomania.                                                                                        A skin irritation which is characterized by extreme itchiness due to minute    parasites which penetrate the skin and deposit eggs. Scabies is often, but not exclusively, transmitted through sexual contact.                               A variation in sexual behavior which is characterized by an individual who     derives sexual gratification from viewing others involved in sexual activity orthrough viewing pictures or films with erotic content.                         When used as a verb "to screw somebody" is a slang term which refers to the    behavior of sexual intercourse.                                                                                                                               The part of the male external genitalia which houses the testes; scrotal sac.                                                                                                                                                                The phase of the menstrual cycle which is characterized by the maturation of   the corpus luteum (yellow body) and the secretion of progesterone from this    yellow structure.                                                              Also referred to as the ejaculate, semen is the liquid substance which is      expelled from the penis during male ejaculation. In males with reproductive    capabilities, semen contains sperm as well as other alkaline substances.       Structures which consist of coiled tubules which are located in the male       testes. The function of these structures is the production of male reproductivecells (sperm cells).                                                           Also referred to as pleasuring, sensate focus involves a group of techniques   used by sex therapists who are treating couples with sexual difficulties. They involve focusing on certain bodily sensations involved in sexual activity.     A hymen which has two or more openings into the interior of the vagina.        See also cribiform hymen.                                                                                                                                     Specialized chromosomes which determine the genetic sex of an individual. A    genetic female is conceived when the combination of sex chromosomes results in in XX pattern. A male results if the combination results in an XY pattern.     A reddish rash-like appearance of the skin which can appear in different body  locations (usually on backs of thighs and under the neck) during sexual        activity or sexual arousal.                                                    The behavior of submitting women to "second class" treatment based on the      double standard for the sexes which proclaims male superiority in a variety of areas.                                                                         An individual who is an authority on the study of sex as a science.                                                                                                                                                                          The study of the science of sex. This field is multidisciplinary in that it    incorporates findings from psychology, anatomy, physiology, chemistry, and     sociology.                                                                     A category of sexual dysfunction which is characterized by an individual who   has markedly decreased desire for sexual activity.                                                                                                            A category of sexual dysfunction which is characterized by an individual who isrepulsed by, and extremely afraid of, sexual activity.                                                                                                        This term collectively refers to a group of difficulties experienced around    individual and interpersonal sexual functioning.                                                                                                              Sexual intercouse is a collective term for the insertion of the penis into     the anal, oral, or vaginal orafice of the sexual partner.                                                                                                     This term refers to the general gender preference for a sexual object.         Examples of sexual orientations are homosexual, heterosexual, and bisexual.                                                                                   A four phase cycle which was described and studied in the laboratory by        Masters and Johnson. These four stages are 1. excitement 2. plateau 3. orgasm  4.resolution. Variability in progression through the stages is the rule.       A category of female sexual dysfunction which is characterized by lack of      vaginal lubrication during the primary stages of sexual activity. This lack of lubrication is typically a sign of the absence of sexual arousal.              Orgasm which is experienced at the same time by partners engaging in sexually  stimulating behavior.                                                                                                                                         A slang term which refers to a male who is effeminate.                                                                                                                                                                                       A slang term for the sexual behavior of simultaneous oral stimulation of the   genitals by sexual partners.                                                                                                                                  A noxious smelling substance produced by the secretion of the Tyson glands     which are located in the prepuce of the uncircumcised individual.                                                                                             This term more frequently refers to the sexual behavior of anal intercourse.   When used as a legal term, it may connote a variety of sexual acts which have  been considered to be deviant, such as bestiality.                             A recently developed procedure which employs ultrasound waves to create a videoimage of the fetus. Ultrasound is also used during amniosentesis as a          precautionary measure to guard against damage with the amniocentesis needle.   A powdered substance with supposed aphrodisiac characteristics. See            cantharides.                                                                                                                                                  An instrument which is used to separate the vaginal walls for ease of          examination of the interior of the vagina by a gynecologist.                                                                                                  The substance which is produced in the seminiferous tubules of the testes and  consists of the male reproductive cells. Sperm is contained in the seminal     fluid which is ejaculated during orgasm.                                       The physiological process by which sperm are produced.                                                                                                                                                                                       Fully developed, mature, male reroductive cells.                                                                                                                                                                                             Any substance (usually a foam or jelly) which is capable of killing or         inactivating the reproductive function of sperm cells.                                                                                                        A method used to treat premature ejaculators. The frenulum of the penis (at thebase of the glans penis) is placed between the thumb and forefinger and        pressure is applied to delay ejaculation.                                      A variety of orgasm in which the orgasmic sensations are experienced for a     prolonged period of time (estimates range between 20 and 30 seconds) .                                                                                        A legal term which refers to heterosexual intercourse between an individual andanother individual who is below the age of adulthood. This age varies from     state to state.                                                                An abbreviation for sexually transmitted diseases. STD's are spread and        contracted through interpersonal sexual activity.                                                                                                             A term which refers to the lack of reproductive potential; inability to        conceive.                                                                                                                                                     This term refers to a group of procedures which incapacitate the reproductive  potential of an individual. Examples of sterilization are tubal ligation in    females and vasectomy in males.                                                A term which collectively refers to a group of chemical compounds which are fatsoluble. When used in reference to sexual chemistry, steroids refer to a group of hormones produced in the cortex of the adrenal gland and sex glands.        A slang term which refers to an individual with a heterosexual orientation.                                                                                                                                                                  A Freudian, psychoanalytic term which connotes the redirection of sexual       energy (libido) towards socially sanctioned activities such as work, sports,   and hobbies.                                                                   When used as a verb "to suck someone off" is a slang term which refers to the  behavior of oral stimulation of the penis.                                                                                                                    The behavior of mate-swapping amongst a group of individuals who desire a high frequency of varied sexual contacts.                                                                                                                          A slang term which refers to an effeminate male.                                                                                                                                                                                             A sexually transmitted disease which is caused by a spirochete organism known  as treponema pallidum. There are four stages of the disease which have varying symptoms. If left untreated syphilis causes extensive tissue damage and death. A type of rhythm birth control method which is characterized by a female       monitoring her temperature every morning before any activity to determine      whether ovulation has taken place and when to abstain from intercourse.        A procedure involving the fertilization of a ripe ovum by a mature sperm       in a laboratory  medium in which it is allowed to grow before being replaced inthe uterus. The result is commonly referred to as a test tube baby.            The male sex glands (gonads). This is the anatomical structure which is        responsible for production of gametes (sperm cells) as well as androgens such  as testosterone (male sex hormone).                                            A male sex gland; testis                                                                                                                                                                                                                     A hormone which belongs to the class of hormones known as androgens.           Testosterone is commonly referred to as the male sex hormone. It influences    production of sperm cells as well as maintaining sex drive and functioning.    A skin irritation caused by a fungal infection. This fungus lives best in warm moist areas such as the genitals and between the thighs.                                                                                                      To cause stimulation by caressing or lightly stroking.                                                                                                                                                                                       A slang term which refers to the female mammary glands; a slang term for the   female breasts.                                                                                                                                               A multisymptomatic disorder which affects pregnant women. The disease          progresses through two stages. The first is known as preeclampsia. The advancedstage is referred to as eclampsia. The disease can be fatal if left untreated. A multi-symptomatic disease which results from a bacterial infection by an     organism known as Staphylococcus Aureus. Toxic shock syndrome has been linked  to improper hygiene as well as the use of tampons .                            When used as a noun "a trade" is a slang term which refers to a bisexual       individual; ambisexual.                                                                                                                                       A state which is characterized by an individual who identifies with the        opposite sex of that which is his/her biological sex. Contrary to popular      belief, most transexuals have not surgically changed their sex.                A category of sexual variation which is characterized by an individual who     wears clothing which is fashioned for the opposite sex.                                                                                                       The female homosexual behavior which is characterized by two females lying on  top of eachother, forcefully thrusting their genitals together for the purpose of sexual gratification.                                                       The sexual behavior which is characterized by sexual intercourse and/or        oral-genital stimulation occurring between three partners. The combination of  partners is either two males and a female or two females and a male.           A sterilization procedure used with females. This procedure involves accessing the fallopian tubes through a variety of pathways, and then cutting and/or     tying them in a way as to prvent passage of sperm and fertilization of ova.    The state of an organ when it is erect and engorged with blood.                                                                                                                                                                              A genetic abnormality which results in an individual with only one sex         chromosome (an x chromosome). These individuals have a female body type but    their sexual anatomomy is poorly developed or non-existent.                    See sonogram.                                                                                                                                                                                                                                An anatomical structure which attaches the fetus to the placenta. The umbilicalcord carries nutrients to the fetus from the mother and waste products from thefetus to the mother.                                                           A condition which is characterized by the failure of one or both testicles to  descend into the scrotal sac; see also chryptorchordism, anorchus.                                                                                            The tube which passes from the bladder out through the urethral opening. In    males, the urethra serves as a vessel for sperm during ejaculation. The urethraalso serves as a passageway for the elimination of urine in both sexes.        The opening of the urethral tube at the tip of the penis in males and in the   upper portion of the vulva in females. Urine passes through the urethra and    and out the urethral meatus..                                                  A male disorder which is characterized by the swelling of the urethral tube    and/or bladder.                                                                                                                                               A category of sexual variation which is characterized by an individual who     derives sexual gratification from urinating or physical interaction with urine.Also known as urophilia.                                                       A physician who specializes in the treatment of medical disorders and          dysfunction associated with the urogenital system.                                                                                                            See uroglania.                                                                                                                                                                                                                               See fallopian tube.                                                                                                                                                                                                                          The female anatomical structure which is a hollow, elastic, three layered organlocated in the abdominal cavity. Also referred to as the womb, this structure  houses the developing fetus.                                                   A method of abortion which is characterized by the suctioning of the contents  of the uterus. This procedure is most commonly used in the first trimseter of  pregnancy.                                                                     A female anatomical structure which originates as an opening under the pubic   bone, bewteen the thighs. This structure is a flexible, tubular canal, which   extends to the cervix, and serves as the birth canal during delivery.          An orgasm which results without direct stimulation of the female's clitoris.                                                                                                                                                                 A category of female sexual dysfunction which is characterized by intense,     uncontrollable spasms of the vaginal musculature. These spasms may be quite    painful and preclude penile penetration and intravaginal intercourse.          Inflammation of the vaginal tissues due to a bacterial infection.                                                                                                                                                                            Two ducts which transport sperm from the epididymis of the the testes to the   seminal vesicles and eventually out through the urethra.                                                                                                      A sterilization procedure used in males. This method of sterilization is       characterized by surgically accessing the vas deferens and then tying or       severing them in order to prevent transmission of sperm.                       A physiological process which is characterized by the engorgement of tissues   due to congestion of blood vessels. During sexual activity, especially in the  excitement phase, vasocongestion is evident in the penis and labia.            A surgical procedure which refuses or unties the vas deferens after a vasectomyhas been previously performed.                                                                                                                                This term collectively refers to a group of diseases which can be transmitted  through sexual interaction. See also STD (sexually transmitted disease).                                                                                      Non-cancerous growths which are the result of a sexually transmitted virus.                                                                                                                                                                  Two masses of erectile tissue which flank the interior of the vaginal opening. These anatomical structures become engorged with blood as a result of sexual   arousal.                                                                       The area of the female external genitalia which is located between the inside  lips (labia minora); also known as the vaginal introitus.                                                                                                     An individual who has not experienced sexual intercourse.                                                                                                                                                                                    A variation in sexual behavior which is characterized by an individual who     derives primary sexual gratification through observing others involved in      sexual activity.                                                               This term collectively refers to the female external genitals such as the labiamajora, labia minora, vaginal meatus, the urethral meatus, and the clitoris.                                                                                  The process by which an infant is given substitutes which eventually replace   the nourishment from the mother's breast.                                                                                                                     Male ejaculation which occurs during sleep. See also nocturnal emission.                                                                                                                                                                     A woman who breast feeds the child of another woman.                                                                                                                                                                                         The term refers the female anatomical structure of the uterus.                                                                                                                                                                               A sex chromosome which, together with a second sex chromosome, determines the  genetic sex of an individual. Two X chromosomes result in a female. An XY      pattern results in a male.                                                     A sex chromosome which, together with an X chromosome, determines the genetic  pattern of a human male. See also sex chromosomes.                                                                                                            A variation of sexual behavior which is characterized by an individual who is  intensely attracted to animals. See also bestiality.                                                                                                          An ovum which has been fertilized by a mature sperm.