Category:Dioptric

Di*op"tric, a. (Optics)

Defn: Of or pertaining to the dioptre, or to the metric system of numbering glasses. -- n.

Defn: A dioptre. See Dioptre.

Di*op"tric, Di*op"tric*al, a. Etym: [Gr. dioptrique.]

Defn: 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.