black diamond

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English[edit]

English Wikipedia has an article on:
Wikipedia

Noun[edit]

black diamond (countable and uncountable, plural black diamonds)

  1. hematite
  2. anthracite
  3. carbonado, a natural diamond that is black in colour
  4. A black synthetic diamond, specifically a CVD polycrystalline diamond or HPHT polycrystalline compact diamond.
  5. boron carbide
  6. (South Africa, derogatory) A member of the new affluent black middle class in South Africa, characterized by conspicuous consumption.
  7. (skiing) A symbol representing a steep and relatively difficult trail, typically 40% gradient or above.

Coordinate terms[edit]

(skiing):

Derived terms[edit]

See also[edit]

  • ♦ (Unicode black diamond)
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