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English definition of “ultraviolet”

ultraviolet

adjective     /ˌʌl.trəˈvaɪə.lət/ (abbreviation UV)
describes light with a wavelength that is after the violet (= light purple) end of the range of colours that can be seen by humans. Light of this type causes the skin to become darker in the sun.The qualities of light
(Definition of ultraviolet adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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