/ Dictionary / Index D defibrinate: Meaning and Definition of Find definitions for: de•fi•bri•nate Pronunciation: (dē-fī'bru-nāt"), [key] — -nat•ed, -nat•ing. to remove fibrin from (blood). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: defibrinate (Thesaurus) defibrillator deficience Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language