An Explosive Invented in Ancient China
This page is the CodyCross answer for the clue below from Wild West, Group 440, Puzzle 4 (Conestoga Wagon).
Question is: An Explosive Invented in Ancient China
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.