Invented by the Chinese, Used in Munitions
This page is the CodyCross answer for the clue below from Greece, Group 680, Puzzle 3 (Hypatia of Alexandria).
Question is: Invented by the Chinese, Used in Munitions
and the answer is: GUNPOWDER
Word Meaning:
GUNPOWDER — An explosive mixture of saltpetre (potassium nitrate), charcoal and sulfur; formerly used in gunnery but now mostly used in fireworks.
Definitions from Wiktionary.