wastewater
UK: ˈweɪstwɔːtə | US: ˈweɪstwɔːtər
n. water that has been used in domestic, industrial, or agricultural processes and contains waste products.
The word "wastewater" is a straightforward compound of "waste" (from Old English wæste, meaning "desolate" or "uncultivated," later evolving to mean "useless by-products") and "water" (from Old English wæter, derived from Proto-Germanic watōr). The term logically combines these elements to describe water contaminated by waste, reflecting its functional role in environmental and engineering contexts.
The factory treats its wastewater before releasing it into the river.
Urban wastewater systems prevent pollution by filtering harmful substances.
Farmers reuse wastewater for irrigation after proper treatment.
The study analyzed microorganisms found in domestic wastewater.
Advanced technologies can purify wastewater to drinking standards.