sodium cyanide

noun Chemistry.

a white, crystalline, deliquescent, water-soluble, poisonous powder, NaCN, prepared by heating sodium amide with charcoal: used chiefly in casehardening alloys, in the leaching and flotation of ore, and in electroplating.

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dignified propriety of behavior, speech, dress, etc.
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Origin of sodium cyanide

First recorded in 1880–85

Words nearby sodium cyanide

sodium bromide, sodium carbonate, sodium chlorate, sodium chloride, sodium citrate, sodium cyanide, sodium cyclamate, sodium dichromate, sodium ethylate, sodium fluoride, sodium fluoroacetate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for sodium cyanide

sodium cyanide

noun

a white odourless crystalline soluble poisonous compound with an odour of hydrogen cyanide when damp. It is used for extracting gold and silver from their ores and for case-hardening steel. Formula: NaCN
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012