from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A weapon used to hurl stones
from the GNU version of the Collaborative International Dictionary of English
- n. An ancient war engine for hurling stones.
from The Century Dictionary and Cyclopedia
- n. A military engine for throwing large stones.
Medieval Latin petraria, from Latin petra ("stone"). (Wiktionary)
The third class of ordnance included the guns firing stone projectiles, such as the pedrero (or perrier, petrary, cannon petro, etc.), the mortars, and the old bombards like Edinburgh Castle's famous Mons Meg.