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.)
同义词：scallopcrenationcrenaturecrenelle
a notch or open space between two merlons in a crenelated battlement
同义词：crenelle
v.supply with battlements
同义词：crenelatecrenellate
英汉双解大词典
crenel/krɪˈnɛl/(alsocrenelle)
1.
N（名词）
any of a set of openings formed in the top of a wall or parapet and having slanting sides, as in a battlement (城墙或胸腔上的)垛口