Definition of 'crenel'

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Noun

1. 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: scallop crenation crenature crenelle
2. a notch or open space between two merlons in a crenelated battlement
      Synonyms: crenelle

Verb

1. supply with battlements
      Synonyms: crenelate crenellate

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