blackwater
/ˈblækˌwɔtər/
noun
- Wastewater from toilets and other sources that contains human waste.
- Improper disposal of blackwater can contaminate groundwater.
- The treatment plant processes blackwater separately from graywater.
- The camping trailer has a special tank for storing blackwater.
- Dark-colored water, often found in swamps or flooded forests, caused by decaying plant matter.
- Kayaking through the blackwater river felt like gliding through a shadow.
- Many fish species thrive in the acidic blackwater of the Amazon basin.
- The blackwater of the swamp was so dark it looked like tea.
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