/ Dictionary / Index C Coumadin: Meaning and Definition of Find definitions for: Cou•ma•din Pronunciation: (k'mu-din), [key] — Pharm., Trademark. Pharm.,Trademark. a brand name for warfarin (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: coumadin (Thesaurus) Coulter pine coumarin Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language