/ Dictionary / Index H hydrazoic acid: Meaning and Definition of Find definitions for: hy'drazo'ic ac'id Pronunciation: [key] a colorless, very explosive, poisonous liquid, HN, having a penetrating odor and irritating to the eyes and mucous membranes. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hydrazoic hydrazone Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language