Definition from Wiktionary, the free dictionary
casemate (plural casemates)
- A bombproof chamber, usually of masonry, in which cannon may be placed, to be fired through embrasures; or one capable of being used as a magazine, or for quartering troops.
- A hollow molding, chiefly in cornices.
bombproof chamber as part of fortification
casemate f (plural casemates)