复数:embrasures
1.【军】枪眼,炮眼,射击孔
2.【建】漏斗状斜面墙
3.【医】楔状隙
1.an opening in the wall of a building for a door or window, tapered so as to be wider on the inside than on the outside
2.a slanted opening in the wall or parapet of a fortification, designed so that a defender can fire through it on attackers