/ Dictionary / Index C copulation: Meaning and Definition of Find definitions for: cop•u•la•tion Pronunciation: (kop"yu-lā'shun), [key] — n. sexual intercourse. a joining together or coupling. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: copulation (Thesaurus) copulate copulative Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language