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silicon carbide

noun, Chemistry.
a very hard, insoluble, crystalline compound, SiC, used as an abrasive and as an electrical resistor in objects exposed to high temperatures.
Origin of silicon carbide
1900-05 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for silicon-carbide

silicon carbide

an extremely hard bluish-black insoluble crystalline substance produced by heating carbon with sand at a high temperature and used as an abrasive and refractory material. Silicon carbide whiskers have a high tensile strength and are used in composites; very pure crystals are used as semiconductors. Formula: SiC
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
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