The black sulfide of antimony, Sb₂S₃, used in pyrotechnics, etc.

A mixture of potassium carbonate and charcoal, obtained by deflagrating tartar with half its weight of niter.

(dated) blackmail (rent paid in corn, meat, or the lowest coin)

Cold so intense as to freeze vegetation and turn it black, without the formation of hoarfrost.

The black oxide of manganese, MnO₂.

(UK, dated) Any bovine cattle reared for its meat, as opposed to dairy cattle.

(mining) Tin ore (cassiterite), when dressed, stamped and washed, ready for smelting. It is in the form of a black powder, like fine sand.

A cathartic medicine composed of senna and magnesia.

(UK, historical, obsolete slang) The Irish shilling of 13 pence, as opposed to the English 'white hog' shilling of 12 pence

plural of black hog