dioptric

2 definitions found

dioptric - Collaborative International Dictionary of English v.0.48 :

  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.
     [1913 Webster]
  
     Dioptric curve (Geom.), a Cartesian oval. See under
        Cartesian.
        [1913 Webster]

  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