1 In fortifications, a vaulted and blast-resistant chamber with an embrasure in the outer wall, used as a gun-emplacement. It is usually within the general constructions comprising the defences. A casemate or casemated wall is a fortification with a series of casemates between strong outside and inside walls, with massive cross-walls acting as stiffeners between them.
2 Cavetto moulding not exceeding a quarter-round.
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