angle of sight
21Diopter sight — Target shooting diopter of a 10 metre air rifle with a mounted occluder for the non aiming eye The diopter is an aperture sight component used to assist the aiming of a guns/devices, usually those intended to launch projectiles, such as firearms …
22line of sight — noun an imaginary straight line along which an observer looks • Syn: ↑line of vision • Hypernyms: ↑line * * * 1. or line of sighting : a linear projection toward a target of the straight line obtained when the sights of a firearm are in perfect… …
23Optic angle — Optic Op tic ([o^]p t[i^]k), Optical Op tic*al ([o^]p t[i^]*kal), a. [F. optique, Gr. optiko s; akin to o psis sight, o pwpa I have seen, o psomai I shall see, and to o sse the two eyes, o ps face, L. oculus eye. See {Ocular}, {Eye}, and cf.… …
24dispart sight — Dispart Dis*part , n. 1. (Gun.) The difference between the thickness of the metal at the mouth and at the breech of a piece of ordnance. [1913 Webster] On account of the dispart, the line of aim or line of metal, which is in a plane passing… …
25muzzle sight — Dispart Dis*part , n. 1. (Gun.) The difference between the thickness of the metal at the mouth and at the breech of a piece of ordnance. [1913 Webster] On account of the dispart, the line of aim or line of metal, which is in a plane passing… …
26Vertical angle — Vertical Ver ti*cal, a. [Cf. F. vertical. See {Vertex}.] [1913 Webster] 1. Of or pertaining to the vertex; situated at the vertex, or highest point; directly overhead, or in the zenith; perpendicularly above one. [1913 Webster] Charity . . . is… …
27lead angle — i. The angle by which an allowance is made for the radius of turn to enable the aircraft to role out on the desired track. The aircraft must commence its turn to the track before reaching it; otherwise, the aircraft will overshoot the desired… …
28range angle — noun : the angle formed between a vertical line and the line of sight to an aiming point at the instant of release of an aerial bomb called also dropping angle, sighting angle …
29Telescope sight — Telescope Tel e*scope, n. [Gr. ? viewing afar, farseeing; ? far, far off + ? a watcher, akin to ? to view: cf. F. t[ e]lescope. See {Telegraph}, and { scope}.] An optical instrument used in viewing distant objects, as the heavenly bodies. [1913… …
30not a pretty sight — noun a) Something visually unappealing, ranging from mildly unattractive to utterly disgusting in appearance. The navvy was certainly not a pretty sight. His muscular arms and legs were all a sprawl and his head hung back at a strange angle to… …
