Carborundum

American  

[kahr-buh-ruhn-duhm] / ˌkɑr bəˈrʌn dəm /

Trademark.

1. a form of manufactured silicon carbide used industrially as an abrasive and refractory.

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Carborundum British  

/ ˌkɑːbəˈrʌndəm /

noun

1. 1. any of various abrasive materials, esp one consisting of silicon carbide

   2. ( as modifier )

      a Carborundum wheel

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Example Sentences

Carborundum is silicon carbide, SiC, a very hard material used as an abrasive on sandpaper and in other applications.

From Textbooks • Feb. 14, 2019

Instead, Chairman Milliken, apparently fearing an unfriendly takeover attempt, paid $66 a share for Carborundum.

From Time Magazine Archive

It was also a notable coup for the patrician Mellon family of Pittsburgh, which has for decades owned a large block of Carborundum stock.

From Time Magazine Archive

The saga began in late 1977, when Kennecott took some of the proceeds from the Government-ordered sale of a subsidiary, Peabody Coal Co., and bought Carborundum Co., a maker of abrasives.

From Time Magazine Archive

Carborundum is a crystalline silicon carbide formed in the electric furnace.

From The Radio Amateur's Hand Book by Collins, A. Frederick (Archie Frederick)