A substance consisting of ground, pulverized, or otherwise finely dispersed solid particles, A dry explosive mixture, such as gunpowder, Light dry snow, intransitive verb_ To use powder on the hair or skin, To be reduced to powder; to become like powder, transitive verb_ To reduce to fine particles; to pound, grind, or rub into a powder; to comminute; to pulverize; to triturate, To sprinkle with powder, or as with powder; to be sprinkle, To reduce to fine particles