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[keys-meyt] /ˈkeɪsˌmeɪt/
an armored enclosure for guns in a warship.
a vault or chamber, especially in a rampart, with embrasures for artillery.
Origin of casemate
1565-75; < Middle French < Old Italian casamatta, alteration (by folk etymology) of Greek chásmata embrasures, literally, openings, plural of chásma chasm
Related forms
casemated, adjective
uncasemated, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for casemate
  • Two of the barbette guns of the fort had been disabled and three casemate guns silenced.
  • The casemate magazines for this battery were also constructed.
  • Each of the arched chambers surrounding the parade ground is a casemate.
  • Two gun embrasures and one howitzer embrasure were closed later on to make room for a torpedo casemate.
  • It is doubtful if they have casemate guns in position.
British Dictionary definitions for casemate


an armoured compartment in a ship or fortification in which guns are mounted
Derived Forms
casemated, adjective
Word Origin
C16: from French, from Italian casamatta, perhaps from Greek khasmata apertures, plural of khasmachasm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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