dioptric
13 points
English
8 letters
Not in frequency data
Valid in: UK dictionary
Definitions
Of or pertaining to the dioptre, or to the metric system of numbering glasses. -- n. A dioptre. See Dioptre.
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.
Definition: WordNet 3.1, Princeton University.
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