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Alundum

[ uh-luhn-duhm ]
/ əˈlʌn dəm /
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Trademark.

a brand name for a substance consisting of fused alumina, used chiefly as an abrasive and as a refractory.

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
  • Emery, carborundum and alundum wheels are developed from the grindstone of the distant past.

    Inventors at Work|George Iles

British Dictionary definitions for Alundum

Alundum
/ (əˈlʌndəm) /

noun

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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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