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.
More than 80 percent of the world’s population is exposed to light pollution, and with each passing year, fewer and fewer of us have ever known anything else. Rowan Jacobsen, Harpers Magazine, 24 Oct. 2025 Find a dark location far away from light pollution. John Tufts, IndyStar, 23 Oct. 2025 But rising light pollution levels have also been linked to the decline of insect populations and the rising incidence of sleep disorders and depression in humans. Tereza Pultarova, Space.com, 21 Oct. 2025 What To Know The best place to view tonight's shower is in a dark location, away from city light pollution, and preferably without any cloud cover. Hannah Parry, MSNBC Newsweek, 21 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 29 Oct. 2025.

Last Updated: - Updated example sentences
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