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light pollution

noun

  1. unwanted or harmful light, as from bright street lights or neon signs.
  2. Astronomy. artificial illumination of the sky that sets a limit on the faintness of stars that can be observed or photographed.


light pollution

noun

  1. the glow from street and domestic lighting that obscures the night sky and hinders the observation of faint stars


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Word History and Origins

Origin of light pollution1

First recorded in 1970–75

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Example Sentences

In regards to the more tangible issues, then, among environmental issues, where would you rank light pollution?

A piece in National Geographic characterized light pollution as likely the easiest pollution problem to solve.

As with many aspects of modern life, light pollution represents both a triumph of technology and a minor disaster.

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