/ Dictionary / Index N nitramino group: Meaning and Definition of Find definitions for: nitrami'no group" Pronunciation: [key] — Chem. Chem. the univalent group –NHNO. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nitramino nitrate Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language