/ Dictionary / Index A aminate: Meaning and Definition of Find definitions for: am•i•nate Pronunciation: (am'u-nāt"), [key] — -nat•ed, -nat•ing. to introduce an amino group into (a compound). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aminase Amindivi Islands Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language