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n. An opening in a thick wall for a door or window, especially one with sides angled so that the opening is larger on the inside of the wall than on the outside.

n. A flared opening for a gun in a wall or parapet.

n. Any of the indentations between the merlons of a battlement.

n. The slanting indentation in a wall for a door or window, such that the space is larger on the inside than the outside.

n. An embrace.

n. A splay of a door or window.

n. An aperture with slant sides in a wall or parapet, through which cannon are pointed and discharged; a crenelle. See Illust. of Casemate.

n. In architecture, the enlargement of the aperture of a door or window on the inside of the wall, designed to give more room or admit more light, or to provide a wider range for ballistic arms.

n. In fortification, an opening in a wall or parapet through which guns are pointed and fired; the indent or crenelle of an embattlement.

n. An embrace.

To furnish with embrasures, as a wall or fort: used chiefly in the past participle.

n. an opening (in a wall or ship or armored vehicle) for firing through

"Upon these, and along the walls, which in most castles were topped by a parapet and a kind of embrasure called crennels, the defenders of the castle were stationed during a siege, and from thence discharged arrows, darts, stones, and every kind of annoyance they could procure, upon their enemies."

opening   

casemate   

embrace    splay   

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