bort

(bôrt)

noun

a flawed diamond used only for industrial purposes, esp. in crushed form for grinding and polishing
sometimes called bortz

Origin: prob. via Du boort < OFr bourt, bastard < L burdus, hinny

See bort in American Heritage Dictionary 4

noun
  1. Poorly crystallized diamonds used for industrial cutting and abrasion.
  2. A carbonado.

Origin:

Origin: Probably from Dutch boort

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Related Forms:

  • bortˈy adjective
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