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Alundum

[uh-luhn-duh m] /əˈlʌn dəm/
Trademark.
1.
a brand name for a substance consisting of fused alumina, used chiefly as an abrasive and as a refractory.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for Alundum

Alundum

/əˈlʌndəm/
noun
1.
trademark a hard material composed of fused alumina, used as an abrasive and a refractory
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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