casement(redirected from Casement, Sir Roger (David))
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1. a window frame that is hinged on one side
2. a window containing frames hinged at the side or at the top or bottom
Sir Roger (David). 1864--1916, British diplomat and Irish nationalist: hanged by the British for treason in attempting to gain German support for Irish independence
1. A window sash (ventilator, 2) which swings open along its entire length; usually on hinges fixed to the sides of the opening into which it is fitted; see casement window.
2. A deep hollow molding, used chiefly in cornices.