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silicon carbide

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noun Chemistry.
  1. a very hard, insoluble, crystalline compound, SiC, used as an abrasive and as an electrical resistor in objects exposed to high temperatures.
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Origin of silicon carbide

First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for silicon carbide

silicon carbide

noun
  1. 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
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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