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.
In their study, researchers examined a large wastewater plume at the mouth of the Tijuana River, south of Imperial Beach near San Diego, using NASA's EMIT (Earth Surface Mineral Dust Source Investigation) instrument. Soo Kim, MSNBC Newsweek, 13 June 2025 Santora said that testing of Marin County wastewater indicates that the presence of COVID-19 in the county is currently low. Richard Halstead, Mercury News, 9 June 2025 Expanding wastewater reuse operations regionwide could go a long way toward easing that pressure, said UCLA water researcher Noah Garrison. David Condos, NPR, 9 June 2025 The measles virus was recently detected in wastewater samples collected by the Sacramento Area Sewer District. Ishani Desai, Sacbee.com, 6 June 2025 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

Browse Nearby Words

Cite this Entry

“Wastewater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wastewater. Accessed 18 Jun. 2025.

More from Merriam-Webster on wastewater

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!