Definitions
1.NounWaste or impure matter.
2.NounResidue that forms as a scum on the surface of molten metal from oxidation.
3.NounThe impurities in metal.
4.NounA waste product from working with metal.
5.NounWorthless or trivial matter.
6.NounResidual raw opium left in an opium pipe which can be recycled for further sale or use.
7.VerbTo remove dross from.