fallopian tube
One of the two tubes extending from the ovary to the uterus through which eggs are transported.
fag
Pejorative, slang term for a homosexual.
fellatio
Oral stimulation of the male genitals.
female circumcision
The surgical removal of the clitoris and all or part of the labia. Also known as clitoridectomy.
female condom
A soda-can-shaped pouch that is placed inside the vagina to line the vaginal walls for prevention of pregnancy and disease.
femme
A lesbian who exhibits stereotypically feminine traits.
fertility awareness
One of the contraceptive methods that is based on a woman being able to predict her reproductive cycle, including calendar (rhythm), basal body temperature (BBT), mucus, and symptothermal methods.
fertilization
The union of sperm and egg, resulting in conception.
fetal alcohol syndrome
A condition that effects infants born to alcoholic mothers.
fetishes
Obtaining sexual excitement primarily or exclusively from an inanimate object or a particular part of the body.
fetishism
Obtaining sexual excitement primarily or exclusively from an inanimate object or a particular part of the body.
fetishistic transvestism
A paraphilia in which a man becomes sexually excited by cross-dressing. This is in contrast to non-fetishistic transvestism, in which the motivation is not sexual excitement.
fetus
The human unborn organism from the ninth week up until birth.
fibroadenoma
A normally harmless, movable growth in the breast of young women.
fibrocystic disease
A common and usually harmless breast condition.
fimbriae
The fingerlike projections at the end of the fallopian tube extending towards the ovary.
fingering
Slang term for stimulation of a woman's genitals with the fingers.
fist fucking
Slang term for a sexual variation in which an individual inserts his or her entire hand into their partner's vagina or anus.
fitness
In evolutionary theory, an individual's reproductive success.
flaccid
Not erect.
flagellum
The tail of a sperm that helps to propel it.
follicle
The sac of estrogen-secreting cells in the ovary that contains an egg.
follicle-stimulating hormone (FSH)
A hormone secreted by the pituitary that regulates follicle development in females and sperm production in males.
follicular phase
The phase of the menstrual cycle during which a follicle matures.
foreplay
A term used to refer to sexual activities other than intercourse. The term comes from the view that some individuals hold that all activities of a sexual nature are merely designed to lead up to intercourse.
foreskin
The sheath of skin covering the tip of the penis; often removed during circumcision.
fornication
Sexual intercourse between two unmarried people.
frenulum
A highly sensitive area of skin on the underside of the penis, where the glans meets the body of the penis.
frigidity
No longer used term that refers to a lack of sexual response in a woman.
frotteurism
A paraphilia characterized by obtaining sexual excitement from touching or rubbing one's body against others without their consent.
fuck
Slang term for intercourse. Used in many contexts with many alternative
meanings.
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