Meaning of demilune

dem•i•lune

Pronunciation: (dem'i-ln"), [key]
— n.
  1. a crescent.
  2. an outwork resembling a bastion with a crescent-shaped gorge.
  3. a crescent or half-moon shape, as of the top of a piece of furniture.
—adj.
  1. shaped like a crescent.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.