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Definition of dioptrics noun from the Oxford Advanced Learner's Dictionary

dioptrics

noun

/daɪˈɒptrɪks/

/daɪˈɑːptrɪks/

[uncountable] (physics)

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the scientific study of refraction (= the way light changes direction when it goes through glass, etc.)

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See dioptrics in the Oxford Advanced American Dictionary

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noun

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B2

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