black diamond
noun
Forms black diamonds
- noun Hematite.
- noun Anthracite.
- noun Carbonado, a natural diamond that is black in color.
- noun A black synthetic diamond, specifically a CVD polycrystalline diamond or HPHT polycrystalline compact diamond.
- noun Boron carbide.
- noun (South Africa, derogatory) A member of the new affluent black middle class in South Africa, characterized by conspicuous consumption.
- noun (skiing) A symbol representing a steep and relatively difficult trail, typically of a 40% gradient or above.
Synonyms
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “black diamond”, CC BY-SA 4.0. Details