rayonnement ultraviolet
/ˌʊltɹɐvˈaɪəlɪt ɹˌeɪdɪˈeɪʃən/
n
English: ultraviolet radiation · 紫外线辐射
Sens：Electromagnetic waves used especially to tan skin and in microscopy, medicine and lighting (fluorescent tubes).
English: ultraviolet radiation · 紫外线辐射