名詞 crenel:

1. 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.)
   同義詞：scallop, crenation, crenature, crenelle
2. a notch or open space between two merlons in a crenelated battlement
   同義詞：crenelle

動詞 crenel:

1. supply with battlements
   同義詞：crenelate, crenellate

cren.el

n.（名詞）
An open space or notch between two merlons in a battlement or crenelated wall.
槍眼、垛口：在城垛或有城垛的墻上，兩個城齒之間的開闊空間或切口
A crenature.
葉緣鋸齒：葉緣的鈍鋸齒狀突出

來源：
Middle English
Middle English
from Old French * see crenelated
from Old French *參見 crenelated