stormwater

noun

storm·​wa·​ter ˈstȯrm-ˌwȯ-tər How to pronounce stormwater (audio)
-ˌwä-
: rainwater produced by a storm
a stormwater management system
As stormwater runs over lawns, streets and other man-made surfaces, it picks up pollutants—phosphorous and nitrogen from fertilizers, bacteria from pet waste and road salt, to name a few—and carries them into local streams and lakes.Delen Goldberg
This rainfall "of biblical proportions," as the local newspaper described it, swamped the city in waist-high stormwater.Christopher Cooper and Robert Block

Examples of stormwater 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.
These features add vegetation, absorb stormwater and reduce heat, while also making urban areas easier for wildlife to navigate. Eve Bohnett, The Conversation, 2 Apr. 2026 The city of Leawood is looking to repair pipes and stormwater systems in an area that’s been plagued with flooding and water drainage issues during heavy rainstorms. Taylor O'Connor, Kansas City Star, 1 Apr. 2026 The massive 25th Street stormwater improvement project is on time and on budget, as are all other public works projects. Sun Sentinel Editorial Board, Sun Sentinel, 31 Mar. 2026 Diesel had somehow found himself INSIDE a small stormwater drain and [was] unable to get himself out. Christopher Edwards, PEOPLE, 30 Mar. 2026 See All Example Sentences for stormwater

Word History

First Known Use

1848, in the meaning defined above

Time Traveler
The first known use of stormwater was in 1848

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Cite this Entry

“Stormwater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stormwater. Accessed 6 Apr. 2026.

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