Definition of casement noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈkeɪsmənt//
; NAmE NAmE//ˈkeɪsmənt//
(also casement window) Architectural features
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a window that opens on hinges like a door See related entries: Architectural features Word Originlate Middle English (as an architectural term denoting a hollow moulding): from Anglo-Latin cassimentum, from cassa, from Latin capsa, related to capere ‘to hold’.
See the Oxford Advanced American Dictionary entry: casement