American Heritage® Dictionary of the English Language, Fourth Edition
- n. An extremely poisonous white compound, KCN, used in the extraction of gold and silver from ores, in electroplating, and in photography, and as a fumigant and insecticide.
- n. inorganic chemistry The potassium salt of hydrocyanic acid, KCN; the colourless crystals are soluble in water, and it is extremely poisonous, and is used in electroplating, the extraction of gold and silver from their ores, and in photography.
- n. a poisonous salt (KCN) used in electroplating and in photography
“Clean-shaven, in private's uniform, with a black patch over his eye, he was caught by the British, announced his identity, then lost his nerve and crunched the Zynkali capsule of potassium cyanide that was wedged between his gums.”
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