Catadioptric :: Catadioptric (a.) Alt. of Catadioptrica.

Catadioptrical :: Catadioptrical (a.) Pertaining to, produced by, or involving, both the reflection and refraction of light; as, a catadioptric light..

Catadioptrics :: Catadioptrics (n.) The science which treats of catadioptric phenomena, or of the used of catadioptric instruments..

Dioptase :: Dioptase (n.) A hydrous silicate of copper, occurring in emerald-green crystals..

Diopter :: Diopter (n.) Alt. of Dioptr.

Dioptra :: Dioptra (n.) An optical instrument, invented by Hipparchus, for taking altitudes, leveling, etc..

Dioptre :: Dioptre (n.) A unit employed by oculists in numbering glasses according to the metric system; a refractive power equal to that of a glass whose principal focal distance is one meter.

Dioptric :: Dioptric (a.) Of or pertaining to the dioptre, or to the metric system of numbering glasses..

Dioptric :: Dioptric (n.) A dioptre. See Dioptre.

Dioptric :: Dioptric (a.) Alt. of Dioptrica.

Dioptrical :: Dioptrical (a.) Of or pertaining to dioptrics; assisting vision by means of the refraction of light; refractive; as, the dioptric system; a dioptric glass or telescope..

Dioptrics :: Dioptrics (n.) The science of the refraction of light; that part of geometrical optics which treats of the laws of the refraction of light in passing from one medium into another, or through different mediums, as air, water, or glass, and esp. through different lenses; -- distinguished from catoptrics, which refers to reflected light..

Dioptry :: Dioptry (n.) A dioptre.

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