Definition of carborundum in English:

Share this entry


Pronunciation: /ˌkɑːbəˈrʌndəm/


[mass noun] trademark
A very hard black solid consisting of silicon carbide, used as an abrasive.
Example sentences
  • A compound known as silicon carbide, also known as carborundum, is one of the hardest substances known.
  • Control plants were also dusted with carborundum and mock inoculated with a sample volume of potassium phosphate buffer.
  • Before inoculating, 600-mesh carborundum was dusted on the leaves.


Late 19th century (originally US, as a trademark): blend of carbon and corundum.

For editors and proofreaders

Line breaks: car¦bor|un¦dum

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.