We don't have synonyms for embrasures yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are embrasure, embrasured and erasures.
(n) :
(architecture, military) Any of the indentations between the merlons of a battlement; an opening in a wall or parapet through which ordnance can be fired.
(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) :
(architecture, military) Any of the indentations between the merlons of a battlement; an opening in a wall or parapet through which ordnance can be fired.
(n) :
The slanting indentation in a wall for a door or window, such that the space is larger on the inside than the outside.