light pollution

noun

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

Examples of light pollution in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
How To See The Northern Lights Since this may be a photographic aurora, for the best views, locate a dark place using the Dark Sky Place Finder and a light pollution map. Jamie Carter, Forbes.com, 27 Jan. 2026 From the cruising altitude of aircraft like Melnyk's, high above the clouds and far from city light pollution, auroras can appear brighter, sharper and more expansive than from the ground, with clouds and city lights far below. Daisy Dobrijevic, Space.com, 21 Jan. 2026 The key is to choose a north-facing location, ideally elevated and far from light pollution. Valerie Mesa, PEOPLE, 21 Jan. 2026 Head to a north-facing point with a clear view of the horizon, far away from light pollution. Michele Laufik, Martha Stewart, 20 Jan. 2026 See All Example Sentences for light pollution

Word History

First Known Use

1969, in the meaning defined above

Time Traveler
The first known use of light pollution was in 1969

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Cite this Entry

“Light pollution.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/light%20pollution. Accessed 29 Jan. 2026.

Last Updated: - Updated example sentences
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