Black diamond
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 Hematite. countable, uncountable
- 2 an inferior dark diamond used in industry for drilling and polishing wordnet
- 3 Anthracite. countable, uncountable
- 4 Carbonado, a natural diamond that is black in color. countable, uncountable
- 5 A black synthetic diamond, specifically a CVD polycrystalline diamond or HPHT polycrystalline compact diamond. countable, uncountable
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- 6 Boron carbide. countable, uncountable
- 7 A member of the new affluent black middle class in South Africa, characterized by conspicuous consumption. South-Africa, countable, derogatory, uncountable
- 8 A symbol representing a steep and relatively difficult trail, typically of a 40% gradient or above. countable, uncountable