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index of refraction

2 ENTRIES FOUND:

index of refraction

Definition of INDEX OF REFRACTION

First Known Use of INDEX OF REFRACTION

1829

index of refraction

noun    (Medical Dictionary)

Medical Definition of INDEX OF REFRACTION

:  the ratio of the speed of radiation (as light) in one medium (as a vacuum) to that in another medium—called also refractive index

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March 06, 2015
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