{ } a. [ Pref. cata + dioptric: cf. F. catadioptrique. ] (Physics) Pertaining to, produced by, or involving, both the reflection and refraction of light; as, a catadioptric light. Hutton. [ 1913 Webster ]
{ } a. [ Gr. &unr_; belonging to the use of the &unr_;; &unr_; = dia` through + the root of &unr_; 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. [ 1913 Webster ]
Dioptric curve (Geom.), a Cartesian oval. See under Cartesian. [ 1913 Webster ]