Meaning of “ultraviolet” in the English Dictionary

american-english dictionary

"ultraviolet" in British English

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ultravioletadjective

uk /ˌʌl.trəˈvaɪə.lət/ us /ˌʌl.trəˈvaɪə.lət/ abbreviation UV

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

"ultraviolet" in American English

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ultravioletadjective [ not gradable ]

us /ˌʌl·trəˈvɑɪ·ə·lɪt/

physics describes light at the purple end of the spectrum (= set of colors into which light is separated), which cannot be seen by human beings

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