Carborundum

Carborundum

[kahr-buh-ruhn-duhm]
Trademark.
any of various abrasives or refractories of silicon carbide, fused alumina, and other materials.
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Carborundum (ˌkɑːbəˈrʌndəm)
 
n
trademark
 a.  any of various abrasive materials, esp one consisting of silicon carbide
 b.  (as modifier): a Carborundum wheel

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica
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carborundum

exceedingly hard, synthetically produced crystalline compound of silicon and carbon. Its chemical formula is SiC. Since the late 19th century silicon carbide has been an important material for sandpapers, grinding wheels, and cutting tools. More recently, it has found application in refractory linings and heating elements for industrial furnaces, in wear-resistant parts for pumps and rocket engines, and in semiconducting substrates for light-emitting diodes.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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