/ Dictionary / Index A amino group: Meaning and Definition of Find definitions for: ami'no group" Pronunciation: [key] — Chem. Chem. the univalent group, −NH. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aminoglycoside aminopeptidase Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language