Similar words: coitus interruptus, tacitus, tinnitus, detritus, emeritus, pruritus, diabetes mellitus, do it. Meaning: n. the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur.
31 During sexual excitement, these walls secrete a watery substance which serves as a lubricant coitus.
32 The intimate contact of the female sex organs during coitus can give both partners great pleasure.