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  1. an armored enclosure for guns in a warship.
  2. 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 formscase·mat·ed, adjectiveun·case·mat·ed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for casemate

Historical Examples

  • Two days afterwards he found himself in a casemate of the fort of Bicetre.

    The Fat and the Thin

    Emile Zola

  • He had felt hungry in the casemate, and the pangs of hunger had never since left him.

  • It mounts fifteen guns on the top, and fifteen guns in casemate.

    The Life of Gordon, Volume I</p>

    Demetrius Charles Boulger

  • It was with some emotion that I reached the casemate in which Mr. Davis was confined.

  • A casemate of iron plates has been provided for the gunners.

    The Civil War Through the Camera</p>

    Henry W. (Henry William) Elson

British Dictionary definitions for casemate


  1. an armoured compartment in a ship or fortification in which guns are mounted
Derived Formscasemated, adjective

Word Origin

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

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