Definition of light pollution noun from the Oxford Advanced Learner's Dictionary


light pollution

BrE BrE//ˈlaɪt pəluːʃn//
; NAmE NAmE//ˈlaɪt pəluːʃn//
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the existence of too much artificial light in the environment, for example from street lights, which makes it difficult to see the stars
See the Oxford Advanced American Dictionary entry: light pollution