Residue that forms on the surface of molten metal from oxidation.
Worthless or trivial matter.
The impurities in metal.
Waste or impure matter.
A waste product from working with metal.
To remove dross from.
The scoria on the surface of molten metal in the ladle.
Silt or sediment deposited from flowing water.
That which sullies or defiles.
The liquid discharges from kitchens, washbasins, toilets etc; sewage.