Em-brā’sure, n.
(em-brā’zhūr) (Synop., § 130), n. [Fr., fr. embraser, equivalent to ébraser, évaser, to widen an opening.]
Sense 1. An embrace. [Obs.] “Our locked embrasures.” Shak.
Sense 2. (Fort.) An opening in a wall or parapet, through which cannon are pointed and discharged. [See Illust. of Casemate.]
Him shall no sunshine from the fields of azure, No drum-beat from the wall, No morning gun from the black fort’s embrasure, Awaken with its call. Longfellow.
Sense 3. (Arch.) The enlargement of the aperture of a door or window, on the inside of the wall, for giving greater space, or for admitting more light.