/ Dictionary / Index C coitus: Meaning and Definition of Find definitions for: co•i•tus Pronunciation: (kō'i-tus), [key] — n. sexual intercourse, esp. between a man and a woman. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: coitus (Thesaurus) coition coitus interruptus Related Content Daily Word Quiz: alacrity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language