/ Dictionary / Index H hexosamine: Meaning and Definition of Find definitions for: hex•os•a•mine Pronunciation: (hek-sos'u-mēn"), [key] — n. Biochem. any hexose derivative in which a hydroxyl group is replaced by an amino group. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hexone hexosan Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language