| Word | Definitions | Synonyms |
|---|---|---|
| crenel | (noun) a notch or open space between two merlons in a crenelated battlement | Synonyms: crenelle |
| (noun) 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.) | Synonyms: crenation, crenature, crenelle, scallop |