/ Dictionary / Index D deaminate: Meaning and Definition of Find definitions for: de•am•i•nate Pronunciation: (dē-am'u-nāt"), [key] — -nat•ed, -nat•ing. to remove the amino group from (a compound). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: deaminate (Thesaurus) deaminase deaminize Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language