|hīdrə|zōik- noun
Etymology: hydrazoic from hydr- + az- + -ic
: a colorless volatile poisonous explosive liquid HN 3 that when pure has an unbearable odor, is made usually by reaction of nitrous oxide with fused sodium amide or of hydrazine hydrate with ethyl nitrite in alkaline alcoholic solution, and yields explosive salts of heavy metals (as lead azide) — called also azoimide