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Meaning of ‘dioptrical’
1 definition found.
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: WordNet 3.0 Copyright 2006 by Princeton University
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