the name of a gum-resin extracted from an African plant. It is transported hither in the form of drops or granules, and sometimes in large masses composed of these granules adhering together. The best kind of it is that which is freest of drops, of a yellowish colour, and a bitterish taste. It is much used in obstructions of the viscera, and inflammations of the lungs.

Sal AMMONIAC. See ARMONIAC.

AMMONITÆ. See SNAKE-STONES.