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carborundum

División en sílabas: car·bo·run·dum
Pronunciación: /ˌkärbəˈrəndəm
 
/

Definición de carborundum en inglés:

sustantivo

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.

Origen

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

Definición de carborundum en:

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Pronunciación: ˈtɛnɪbrəs
adjective
dark; shadowy or obscure