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



BrE BrE//rɪˈflektəns//
; NAmE NAmE//rɪˈflektəns//
[uncountable, countable](physics)
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a measure of how much light is reflected off a surface, considered as a part of the total light that shines onto it
See the Oxford Advanced American Dictionary entry: reflectance