orgasm
n. the climax of sexual stimulation or activity, when the peak of pleasure is achieved, marked by the release of tension and rhythmic contractions of the perineal muscles, anal sphincter, and pelvic reproductive organs. In men, orgasm is also accompanied by the emission of semen (ejaculation); in women, it is accompanied by contractions of the wall of the outer third of the vagina. See also sexual-response cycle. —orgasmic or orgastic
adj.