Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun hydrogen_cyanide

1 sense of hydrogen cyanide

Sense 1
hydrogen cyanide -- (a highly poisonous gas or volatile liquid that smells like bitter almonds; becomes a gas at around 90 degree Fahrenheit and is most dangerous when inhaled; the anhydride of hydrocyanic acid; used in manufacturing)
       => compound, chemical compound -- ((chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight)