crenelle

crenelation, crenelle - A crenelation (from Latin crena, "notch") is a series of indentations or loopholes around the top of a castle, battlement, or wall—with each indentation being a crenelle (or crenel).See also related terms for notch.

Thesaurus

Noun	1.	crenelle - one of a series of rounded projections (or the notches between them) formed by curves along an edge (as the edge of a leaf or piece of cloth or the margin of a shell or a shriveled red blood cell observed in a hypertonic solution etc.)crenation, crenature, crenel, scallopcurve, curved shape - the trace of a point whose direction of motion changes
	2.	crenelle - a notch or open space between two merlons in a crenelated battlementcrenelbattlement, crenelation, crenellation - a rampart built around the top of a castle with regular gaps for firing arrows or gunsspace - an empty area (usually bounded in some way between things); "the architect left space in front of the building"; "they stopped at an open space in the jungle"; "the space between his teeth"