n. [ L. luna moon: cf. F. lune. See Luna. ] 1. Anything in the shape of a half moon. [ R. ] [ 1913 Webster ]

2. (Geom.) A figure in the form of a crescent, bounded by two intersecting arcs of circles. [ 1913 Webster ]

3. A fit of lunacy or madness; a period of frenzy; a crazy or unreasonable freak. [ Obs. ] [ 1913 Webster ]

These dangerous, unsafe lunes i' the king. Shak. [ 1913 Webster ]

n. [ See Lunette. ] A little moon or satellite. [ Obs. ] Bp. Hall. [ 1913 Webster ]

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 ]