D defs.my
Entry 2 senses Webster, 1913

Casemate

· Case·mate · IPA /ˈkeɪsmeɪt/
01 n. 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 m…
  1. 1.
    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.(Fort.)
  2. 2.
    A hollow molding, chiefly in cornices.(Arch.)