/ Thesaurus / A Synonyms of amino group Find synonyms for: Noun1. amino, amino group, group, radical, chemical groupusage: the radical -NH2WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. 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