black powder: Meaning and Definition of

black' pow'der

Pronunciation: [key]
  1. an explosive powder consisting of saltpeter, sulfur, and charcoal, used chiefly in old guns fired for sport, in fireworks, and for spotting charges in practice bombs; black gunpowder.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.