Catoptrics

n. [ Cf. F. catoptrique. See Catropric. ] (Physics) That part of optics which explains the properties and phenomena of reflected light, and particularly that which is reflected from mirrors or polished bodies; -- formerly called anacamptics. [ 1913 Webster ]

{ } a. [ Gr. &unr_;. See Catopter. ] Of or pertaining to catoptrics; produced by reflection. [ 1913 Webster ]

Catoptric light, a light in which the rays are concentrated by reflectors into a beam visible at a distance. [ 1913 Webster ]