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wastewater

American  
[weyst-waw-ter, -wot-er] / ˈweɪstˌwɔ tər, -ˌwɒt ər /

noun

  1. water that has been used in washing, flushing, manufacturing, etc.; sewage.


Etymology

Origin of wastewater

1400–50; late Middle English waste watre

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

During the second inspection, inspectors found decaying organic waste, wastewater, food residue, unsanitary conditions that allowed the breeding of flies, as well as live and dead flies along the northern perimeter of the warehouse.

From Los Angeles Times Jul. 25, 2026

The court listings show Southern Water has separately been charged with dozens of offences of failing to comply with or contravening an environmental permit condition between 2013 and 2017 at multiple wastewater treatment works.

From BBC Jul. 22, 2026

Once the technologies are sufficiently developed for commercial use, they could help industries treat contaminated wastewater before it reaches rivers, lakes, and oceans.

From Science Daily Jul. 20, 2026

Severn Trent Water breached its wastewater obligations but avoided a fine after taking "genuine accountability" to fix the problems, the industry regulator has said.

From BBC Jul. 8, 2026

“Dusty’s crew didn’t pump the wastewater into the basin. They hooked up to a sewer tank onshore.”

From "Flush" by Carl Hiaasen

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