Alundum

[ uh-luhn-duhm ]

Trademark.

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

Alundum

/ əˈlʌndəm /

noun

1. a hard material composed of fused alumina, used as an abrasive and a refractory

Example Sentences

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

From Project Gutenberg