[ 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

case·mat·ed, adjectiveun·case·mat·ed, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for casemate

British Dictionary definitions for casemate


/ (ˈkeɪsˌmeɪt) /


an armoured compartment in a ship or fortification in which guns are mounted

Derived Forms

casemated, adjective

Word Origin for casemate

C16: from French, from Italian casamatta, perhaps from Greek khasmata apertures, plural of khasma chasm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012