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.
With low-light pollution and high altitudes, the observatory offers visitors the chance to view pristine night skies, sometimes including the Northern Lights, from its roll-off roof. Kathleen Wong, USA Today, 26 Sep. 2025 Find a dark location far away from light pollution. John Tufts, IndyStar, 21 Sep. 2025 Find a dark location far away from light pollution. John Tufts, Louisville Courier Journal, 20 Sep. 2025 Here, the lack of light pollution and moisture will allow the telescope to take more accurate readings of deep space and its structures. Kenna Hughes-Castleberry, Space.com, 17 Sep. 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 Sep. 2025.

Last Updated: - Updated example sentences
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