Ancient Bolt-Throwing Missile Weapon

This page is the CodyCross answer for the clue below from Mesopotamia, Group 967, Puzzle 5 (Dams and Aqueducts).

Question is: Ancient Bolt-Throwing Missile Weapon

and the answer is: BALLISTA

Word Meaning:

BALLISTA — (weaponry, historical) An ancient military engine, in the form of a crossbow, used for hurling large missiles.

Definitions from Wiktionary.