Di*op"tric (?), a. Optics

Of or pertaining to the dioptre, or to the metric system of numbering glasses.

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n.

A dioptre. See Dioptre.

 

© Webster 1913.


Di*op"tric (?), Di*op"tric*al (?), a. [Gr. belonging to the use of the ; = 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.

 

© Webster 1913.

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