crenel
/ˈkrɛn(ə)l
/(also crenelle /krɪˈnɛl/)
noun
An indentation in the battlements of a fort or castle, used for shooting or firing missiles through.Peaked ears appeared along the wall, weapons raised to crenelles....
- Further above, on a bit of wall still more or less intact, the sentry stood straddle-legged in an open crenel, hands on hips, surveying the river and the valley beyond.
- Ramirez ducked behind a crenel, pulling Rakael down with him into an undignified heap.
Origin
Late 15th century: from Old French, based on popular Latin crena 'notch'.