light pollution

noun

Definition of light pollution

  1. :  artificial skylight (as from city lights) that interferes especially with astronomical observations

1968

First Known Use of light pollution

1968


LIGHT POLLUTION Defined for English Language Learners

light pollution

noun

Definition of light pollution for English Language Learners

  • : light from cities, vehicles, etc., that makes it difficult to see things in the sky (such as stars) at night


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