1. (

• scallop ,
• crenation ,
• crenature ,
• crenel ,
• crenelle

) 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.) ;

2. (

• crenel ,
• crenelle

) a notch or open space between two merlons in a crenelated battlement ;