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Noun: crenation  kri'ney-shun
  1. One of a series of rounded projections (or the notches between them) formed by curves along an edge
    "The leaf's edge was marked by a series of crenations";
    - scallop, crenature, crenel, crenelle

Derived forms: crenations

Type of: curve, curved shape

Encyclopedia: Crenation