wastewater

noun

waste·​wa·​ter ˈwāst-ˌwȯ-tər How to pronounce wastewater (audio)
-ˌwä-
: water that has been used (as in a manufacturing process) : sewage

Examples of wastewater 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.
Each wash cycle can release tiny plastic particles into wastewater systems, many of which eventually end up in oceans and other aquatic environments. Alexandra Harrell, Footwear News, 18 May 2026 Subsequent sampling conducted by the commission showed salt readings that suggested the presence of wastewater resulting from the production of oil and gas. Nick Bowlin, ProPublica, 18 May 2026 Debris and wastewater are collected directly in the head rather than traveling up through the machine, preventing them from becoming trapped in a filter. Sheena Vasani, The Verge, 18 May 2026 The erosion of the ground compounded the impacts of the flooding, collapsing the foundations of homes, schools and infrastructure like wastewater systems. Ella Nilsen, CNN Money, 17 May 2026 See All Example Sentences for wastewater

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of wastewater was in the 15th century

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Cite this Entry

“Wastewater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wastewater. Accessed 20 May. 2026.

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