- an explosive powder, esp. a blackish mixture of sulfur, potassium nitrate, and charcoal, used as a charge in cartridges, shells, etc., for blasting, in fireworks, etc.
- gunpowder tea
See gunpowder in American Heritage Dictionary 4
Any of various explosive powders used to propel projectiles from guns, especially a black mixture of potassium nitrate, charcoal, and sulfur.
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