/ Dictionary / Index C coinventor: Meaning and Definition of Find definitions for: co•in•ven•tor Pronunciation: (kō"in-ven'tur), [key] — n. one of two or more joint inventors. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Cointreau coir Related Content Daily Word Quiz: reiterate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language