(mineralogy) A mineral form of cupric oxide

plural of black-jack

(obsolete, mineralogy, UK) Sphalerite; zincblende. / (obsolete) Caramel or burnt sugar, used to colour wines, spirits, ground coffee, etc. / (obsolete) A large leather vessel for beer, etc.

plural of black oak

(dated) Synonym of Taiwan Strait.

(idiomatic) Famine, one of the Four Horsemen of the Apocalypse.

A fan of black metal music.

(snooker) In a frame that ends in both players having the same score, a tiebreaker where the black is put on its spot and the first player must play from the D until one player pots the black.

A soft, dull black powder consisting of finely divided metallic platinum obtained by reduction and precipitation from its solutions. It absorbs oxygen to a high degree, and is employed as an oxidizer.

A disease of grapevines, attacking the leaves and fruit, caused by the fungus Guignardia bidwellii.