Alundum

[ uh-luhn-duh m ]
/ əˈlʌn dəm /
|

Trademark.

a brand name for a substance consisting of fused alumina, used chiefly as an abrasive and as a refractory.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for alundum

  • 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