(historical, euphemistic) Black slaves, regarded as cargo in the slave trade.

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 kite

A species of kite, Milvus migrans, widely distributed throughout the Old World.

plural of black oak

(usually countable) A deciduous oak tree, Quercus velutina, native to eastern North America.

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

plural of black chokeberry

Mylopharyngodon piceus, a cyprinid fish native to East Asia, cultivated for food and traditional Chinese medicine.