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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

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Example Sentences

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

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