wastewater

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

noun

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

Origin of wastewater

1400–50; late Middle English waste watre
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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