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.
After all, the aurora tends to dance low on the northern horizon, so clear skies and minimal light pollution are key. Valerie Mesa, PEOPLE, 7 Nov. 2025 Airglow is incredibly faint, and invisible in most parts of the world because of widespread light pollution. Kenna Hughes-Castleberry, Space.com, 5 Nov. 2025 For the best moon gazing, head to one of America’s top Dark Sky parks, protected areas with exceptionally low light pollution, where the night sky is the perfect backdrop for a star show. Dana Sauchelli, Travel + Leisure, 4 Nov. 2025 For those hoping to view the northern lights, visibility will depend on a range of conditions including clear skies, minimal light pollution and a north-facing view. Melissa Fleur Afshar, MSNBC Newsweek, 29 Oct. 2025 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 9 Nov. 2025.

Last Updated: - Updated example sentences
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