embrasure
/ɛmˈbreɪʒər/
noun
- An opening in a wall or fortification, such as a window or loophole, that is wider on the inside than the outside, often used for shooting or letting in light.
- Sunlight streamed through the stone embrasure, illuminating the dusty room.
- The old fort's embrasures were designed to protect defenders while allowing them to fire at attackers.
- The soldier aimed his rifle through the narrow embrasure in the castle wall.