from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A fortification outside a castle used to split an attacking force; composed of two faces, forming a salient angle whose gorge resembles a half-moon
from the GNU version of the Collaborative International Dictionary of English
- n. A detached work with two embankments which make a salient angle. It is raised before the curtain on the counterscarp of the place. Formerly called demilune and half-moon.
from The Century Dictionary and Cyclopedia
- n. A detached triangular work in fortification, with two embankments which form a projecting angle.
Sorry, no etymologies found.