[em.bra.sure] n [F, fr. obs. embraser to widen an opening] (1702) 1: an opening with sides flaring outward in a wall or parapet of a fortification usu. for allowing the firing of cannon
2: a recess of a door or window
[em.bra.sure] n [F, fr. obs. embraser to widen an opening] (1702) 1: an opening with sides flaring outward in a wall or parapet of a fortification usu. for allowing the firing of cannon
2: a recess of a door or window
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012