1. any of the open spaces between the merlons of a battlement.
2. a crenature.
< Middle French, Old French, apparently diminutive of cren notch (attested since the 15th century), Old French cran, of uncertain origin (dictionary.com)
"Were you at any time aware of an unearthly presence zigzagging along the crenelations?"
- Karen Elizabeth Gordon, Torn Wings and Faux Pas
