/ Dictionary / Index D diazo group: Meaning and Definition of Find definitions for: diaz'o group" Pronunciation: [key] — Chem. Chem. the bivalent group –N=N– united with one hydrocarbon group and another atom or group, as in benzenediazo hydroxide, CHN=NOH, or the bivalent group =N=N united with one hydrocarbon group, as in diazomethane, CH=N=N. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. diazoamino group diazole Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language