Lu-nette′.
A term applied to objects of a halfmoon shape.1. (Fortification.) A detached work presenting a salient angle towards the enemy, and having flanks open at the gorge. With the flanks it has the character of a detached bastion; without the flanks, it would be a redan; with the gorge closed, it would become a redoubt.
2. (Ordnance.) A forked iron plate into which the stock of a field-gun carriage is inserted.
3. (Architecture.) a. An arched aperture in the side of a long vault, and having a less hight than the pitch. b. A semicircular aperture in a concave ceiling. c. An opening in the roof of a house.
4. (Farriery.) A horseshoe having only the front, curved portion; lacking the branches. 5. The flue connecting the fire-chamber with the pot-chamber of a glass-furnace.
6. (Harness.) A blinder for the eyes of an intractable horse.
7. (Optics.) a. A perifocal spectacle-glass; concavo-convex, its curve approximating the shape of the eye and affording more distinct oblique vision. b. A flattened watch-crystal or glass, to avoid adding to the thickness of the watch. The edge of the watch-glass fits within the bezel.
