potassium cyanide

potassium cyanide

noun Chemistry.
a white, granular, water-soluble, poisonous powder, KCN, having a faint almondlike odor, used chiefly in metallurgy and photography.

Origin:
1880–85

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potassium cyanide
 
n
a white poisonous granular soluble solid substance used in photography and in extracting gold from its ores. Formula: KCN

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