Dioptric
Pronunciation : Di*op"tric
Part of Speech : a.
Definition : Defn: Of or pertaining to the dioptre, or to the metric system of numbering glasses. -- n.
Defn: A dioptre. See Dioptre.
(Optics)
Source : Webster's Unabridged Dictionary, 1913
Pronunciation : Di*op"tric, Di*op"tric*al
Part of Speech : a.
Etymology : [Gr. dioptrique.]
Definition : 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.
Source : Webster's Unabridged Dictionary, 1913