CRENELLING
Scrabble letter values: C3R1E1N1E1L1L1I1N1G2 = 13
Definition
CRENELLING is the present participle of CRENELLE.
noun 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.).
Synonyms of CRENELLE: scallop, crenation, crenature, crenel