n.
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.)
2.a notch or open space between two merlons in a crenelated battlement crenel v.
1.supply with battlements
Idiom of the Day
turn out
to be shown to be something, to prove to be true
It turned out that more people came to the party than we expected.