CRENEL

Definition of CRENEL

  1. (verb)supply with battlements
  2. (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.)
  3. (noun)a notch or open space between two merlons in a crenelated battlement