Something that flows out of a sewage treatment plant.
Any outward movement.
The process of flowing out.
A fluid that flows out.
A stream of gaseous material emanating from an active galactic nucleus.
The part of a system that allows material to flow out.
To flow outward.
The liquid discharges from kitchens, washbasins, toilets etc; sewage.
Silt or sediment deposited from flowing water.
The scoria on the surface of molten metal in the ladle.
That which sullies or defiles.