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dioptric

Pronunciation: /dʌɪˈɒptrɪk/

Definition of dioptric

adjective

  • relating to the refraction of light, especially in the organs of sight or in devices which aid or improve the vision.

Origin:

mid 17th century: from Greek dioptrikos, from dioptra, a kind of theodolite (see dioptre)

dioptric in other Oxford dictionaries

Definition of dioptric in the US English dictionary

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