HCN; a colorless, very toxic liquid, with the odor of bitter almonds, present in bitter almonds (amygdalin), the stones of peaches, plums and other fruits, and laurel leaves; inhalation of 300 p.p.m. causes death. SYN: hydrogen cyanide, prussic acid.
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hy·dro·cy·an·ic acid .hī-drō-sī-.an-ik- n an aqueous solution of hydrogen cyanide HCN that is an extremely poisonous weak acid used esp. in fumigating called also prussic acid
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an intensely poisonous volatile acid that can cause death within a minute if inhaled. It has a smell of bitter almonds. See cyanide.
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hy·dro·cy·an·ic ac·id (hi″dro-si-anґik) hydrogen cyanide.Medical dictionary. 2011.