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Meaning of Carborundum

Car•bo•run•dum

Pronunciation: (kär"bu-run'dum), [key]
— Trademark. Trademark.
  1. any of various abrasives or refractories of silicon carbide, fused alumina, and other materials.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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