Crenelation

cren·e·lat·ed also cren·el·lat·ed  (krn-ltd)

adj.

1. Having battlements.

2. Indented; notched: a crenelated wall.

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[Probably from French créneler, to furnish with battlements, from Old French crenel, crenelation, diminutive of cren, notch; see cranny.]

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crene·lation n.

Thesaurus

Noun	1.	crenelation - a rampart built around the top of a castle with regular gaps for firing arrows or guns battlement, crenellation crenel, crenelle - a notch or open space between two merlons in a crenelated battlement fortress, fort - a fortified defensive structure merlon - a solid section between two crenels in a crenelated battlement bulwark, rampart, wall - an embankment built around a space for defensive purposes; "they stormed the ramparts of the city"; "they blew the trumpet and the walls came tumbling down"
	2.	crenelation - the action of constructing ramparts with gaps for firing guns or arrows crenellation construction, building - the act of constructing something; "during the construction we had to take a detour"; "his hobby was the building of boats"