from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A metal plate that covers the trunnions of a cannon and holds it in place.
from the GNU version of the Collaborative International Dictionary of English
- n. A metal covering plate which passes over the trunnions of a cannon, and holds it in place.
from The Century Dictionary and Cyclopedia
- n. In gunnery, one of the strong plates of iron or brass which are fitted over the trunnions of a gun and secure it on the carriage. See cut under gun-carriage.
cap + square (Wiktionary)