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Definition of refractive index noun from the Oxford Advanced Learner's Dictionary

refractive index

noun

/rɪˌfræktɪv ˈɪndeks/

/rɪˌfræktɪv ˈɪndeks/

(physics)

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a measurement of how much an object or a substance refracts lightTopics Physics and chemistryc2

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See refractive index in the Oxford Advanced American DictionarySee refractive index in the Oxford Learner's Dictionary of Academic English

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