noun (used with a singular verb)
Words nearby catoptrics
Origin of catoptrics
OTHER WORDS FROM catoptricsca·top·tric, ca·top·tri·cal, adjectiveca·top·tri·cal·ly, adverb
Examples from the Web for catoptric
Two methods of lighting have been employed—the Catoptric and the Dioptric systems.Grace Darling|Eva Hope
The floating lights of England are illuminated by means of lamps with metallic reflectors, on what is styled the catoptric system.The Floating Light of the Goodwin Sands|R.M. Ballantyne
This optic embodied the first combination of dioptric and catoptric elements in one design (fig. 34).
Another classification divides the instruments themselves into three classes: (a) catoptric, (b) dioptric and (c) catadioptric.
Until about 1895 the illuminating apparatus used in light-vessels was exclusively of catoptric form, usually consisting of 21 in.