ETYM Old Eng. poudre, pouldre, French poudre, Old Fren. also poldre, puldre, Latin pulvis, pulveris: cf. pollen fine flour, mill dust, Eng. pollen. Related to Polverine, Pulverize.
1. A solid substance in the form of tiny loose particles.
2. Any of various cosmetic or medical preparations dispensed in the form of a powder.