Meaning of “refraction” in the English Dictionary

american-english dictionary

"refraction" in British English

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(Definition of “refraction” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"refraction" in American English

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refractionnoun [ U ]

us /rɪˈfræk·ʃən/
absolute index of refraction

The absolute index of refraction is a calculation of the relationship between the speed of light moving through a medium (= substance) and the speed of light in a vacuum (= place with no matter in it)

angle of refraction

The angle of refraction is the angle that a beam of light or other energy that is refracted by a surface makes with a line vertical to that surface.

(Definition of “refraction” from the Cambridge Academic Content Dictionary © Cambridge University Press)