(informal) Any legal substance, in the form of a powder, offering the effects of a recreational drug.

plural of party powder

(dated) A digestive and laxative, composed of a mixture of tartaric acid, sodium bicarbonate, and potassium sodium tartrate.

Alternative form of seidlitz powder

plural of powder mill

mill that manufactures black powder (type of gunpowder)

The metallurgy of producing metal components by compacting and sintering powdered metals

An explosive containing nitroglycerine, used in blasting.

plural of powdering tub

A powder to be mixed with water to make jelly. / An explosive composed of nitroglycerine and collodion cotton.