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Definition of ultraviolet adjective from the Oxford Advanced American Dictionary

 

ultraviolet

 adjective
adjective
NAmE//ˌʌltrəˈvaɪələt//
 
(abbreviation UV) [usually before noun] (physics)
 
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of or using electromagnetic waves that are just shorter than those of violet light in the spectrum and that cannot be seen ultraviolet rays (= that cause the skin to go darker) an ultraviolet lamp compare infrared
See ultraviolet in the Oxford Advanced Learner's Dictionary
Check pronunciation: ultraviolet

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