. "0"^^ . "0"^^ . "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"@en-us . "hydrogen cyanide"@en-us . . . "114613368"^^ . . "14613368-n"^^ . . . "hydrogen cyanide"^^ . . . . . "113776936"@en-us .