/ Dictionary / Index D diazole: Meaning and Definition of Find definitions for: di•a•zole Pronunciation: (dī'u-zōl", dī-az'ōl), [key] — n. Chem. any of a group of organic compounds containing three carbon atoms and two nitrogen atoms arranged in a ring. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. diazo group diazomethane 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