/ Dictionary / Index D dicoumarin: Meaning and Definition of Find definitions for: di•cou•ma•rin Pronunciation: (dī-k'mur-in, ky'-), [key] — n. Pharm. dicumarol. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dicotyledonous dicoumarol Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language