The Collaborative International Dictionary
Dioptric \Di*op"tric\, a. (Optics) Of or pertaining to the dioptre, or to the metric system of numbering glasses. -- n. A dioptre. See Dioptre.
Dioptric \Di*op"tric\, Dioptrical \Di*op"tric*al\, a. [Gr. ?
belonging to the use of the ?; ? = dia` through + the root of
? I shall see: cf. F. dioptrique.]
Of or pertaining to dioptrics; assisting vision by means of
the refraction of light; refractive; as, the dioptric system;
a dioptric glass or telescope. ``Dioptrical principles.''
--Nichol.
Dioptric curve (Geom.), a Cartesian oval. See under Cartesian.
Wiktionary
a. 1 (context obsolete English) Pertaining to a diopter. 2 Acting as a medium for sight; making use of refraction (of lenses, etc.). 3 (context obsolete English) Capable of being seen through. n. 1 (context in the plural English) The branch of optics concerned with refraction. 2 A dioptric telescope.
Usage examples of "dioptric".
There was one of Stevenson's new cages of dioptric prisms around the flame, and once every minute it was turned by clockwork, flashing a broad belt of radiance fifteen miles across the sea.
Only after observing the surface of a pond and poking it with a twig, reed, or one of those long and rigid metallic leaves, would the new Narcissus—without any dioptric or sciatherical computing—grasp the alternating skirmish of light and shadow.