n. [ F., dim. of lune moon, L. luna. See Lune a crescent. ] 1. (Fort.) A fieldwork consisting of two faces, forming a salient angle, and two parallel flanks. See Bastion. [ 1913 Webster ] 2. (Far.) A half horseshoe, which lacks the sponge. [ 1913 Webster ] 3. A kind of watch crystal which is more than ordinarily flattened in the center; also, a species of convexoconcave lens for spectacles. [ 1913 Webster ] 4. A piece of felt to cover the eye of a vicious horse. [ 1913 Webster ] 5. (Arch.) Any surface of semicircular or segmental form; especially, the piece of wall between the curves of a vault and its springing line. [ 1913 Webster ] 6. An iron shoe at the end of the stock of a gun carriage. [ 1913 Webster ] Lunette window (Arch.), a window which fills or partly fills a lunette. [ 1913 Webster ]
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