[uh-luhn-duh m]


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

Examples from the Web for alundum

Historical Examples of alundum

  • Emery, carborundum and alundum wheels are developed from the grindstone of the distant past.

British Dictionary definitions for alundum



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