Etymology
Advertisement

gunpowder (n.)

"explosive powder for the discharge of projectiles from guns," early 15c., from gun (n.) + powder (n.). The Gunpowder Plot (or treason or conspiracy) was a plan to blow up the Houses of Parliament on Nov. 5, 1605, while the King, Lords and Commons were assembled there in revenge for the laws against Catholics (see guy (n.2)).

Advertisement
Advertisement
Definitions of gunpowder

gunpowder (n.)
a mixture of potassium nitrate, charcoal, and sulfur in a 75:15:10 ratio which is used in gunnery, time fuses, and fireworks;
Synonyms: powder
From wordnet.princeton.edu