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.
Kiara Adams, a 2025 graduate of the University of Arizona, has covered state politics in Nevada and Arizona, as well as hyperlocal issues such as environmental equity in Tucson and light pollution on the Las Vegas Strip. Chris Fusco, Sacbee.com, 6 Apr. 2026 The key is to find a spot away from city lights using a light pollution map or a dark-sky finder. Valerie Mesa, PEOPLE, 2 Apr. 2026 Tips for viewing the northern lights The top tip for getting the best view of the northern lights is finding a dark spot away from light pollution. Saman Shafiq, USA Today, 31 Mar. 2026 Where To See the Pink Moon in April To fully enjoy the Pink Moon, a place with minimal light pollution offers the best visibility. Maria Azzurra Volpe, MSNBC Newsweek, 31 Mar. 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 9 Apr. 2026.

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