Definition of luminescence noun from the Oxford Advanced Learner's Dictionary

 

luminescence

 noun
noun
BrE BrE//ˌluːmɪˈnesns//
 
; NAmE NAmE//ˌluːmɪˈnesns//
 
[uncountable](specialist or literary)
 
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a quality in something that produces light Word Origin late 19th cent.: from Latin lumen, lumin- ‘light’ + -escence (denoting a state).
See the Oxford Advanced American Dictionary entry: luminescence