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calcium cyanamide

American

noun

a gray-black, often lumpy powder, CaCN 2 , unstable in water, obtained by heating calcium carbide and nitrogen; cyanamide: used chiefly as a fertilizer, herbicide, and intermediate in the synthesis of nitrogen compounds.

calcium cyanamide British

noun

a white crystalline compound formed by heating calcium carbide with nitrogen. It is important in the fixation of nitrogen and can be hydrolysed to ammonia or used as a fertilizer. Formula: CaCN 2

"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

Etymology

Origin of calcium cyanamide

First recorded in 1905–10

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023