Any of various explosive powders used to propel projectiles from guns, especially a black mixture of potassium nitrate, charcoal, and sulfur.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "gunpowder" in a sentence
"Smokeless gunpowder is hard to ignite, and it burns very hot and very quickly once you get it going."
"As I write I work opt the idea -- gasoline, balls of oakum, caps and gunpowder from a few cartridges, Roman candles, and flares blue, red, and green, shallow metal receptacles to carry the explosive and inflammable stuff; and a trigger-like arrangement by which, pulling on a string, the caps are exploded in the gunpowder and fire set to the gasoline-soaked oakum and to the flares and candles."
"In NYC, I highly recommend the gunpowder masala dosa at Chennai Garden (they call it gunpowder for a reason, trust me)."