/ Dictionary / Index A amino: Meaning and Definition of Find definitions for: a•mi•no Pronunciation: (u-mē'nō, am'u-nō"), [key] — adj. Chem. containing the amino group. amino- Pronunciation: [key] a combining form used in the names of chemical compounds in which the amino group is present: aminobenzene. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: amino (Thesaurus) amine aminoacetic acid Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language