Carborundum

American  

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

Trademark.

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

---

Carborundum British  

/ ˌkɑːbəˈrʌndəm /

noun

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

   2. ( as modifier )

      a Carborundum wheel

---

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

"You grew up on it," explained an accompanying note from the elder Hartmann, a patent attorney in Beverly Hills, Calif., and former chemist who once directed research for the Carborundum Co.

From Time Magazine Archive

Stern also says that Kennecott had to pay a premium price because it was in "a bidding situation"�meaning that it was in competition with other companies interested in acquiring Carborundum.

From Time Magazine Archive

Founded in 1891, Carborundum, which has 85 plants in 24 countries, produces more than 2,000 industrial products ranging from air filters to diesel engine camshafts.

From Time Magazine Archive

Carborundum is another product of the electric furnace.

From The Age of Invention : a chronicle of mechanical conquest by Thompson, Holland