dross Synonyms

slag scoria impurity refuse sediment shagreen silt waste sinter soot scum scruff reject residue residuum rubbish rubble sawdust scobs scrap spilth spume sullage contaminant dreck schlock pollutant Cinders flotsam and jetsam scraps impurities waste product waste matter sweepings trash trashiness dregs remains grounds leftovers crap wastes alluvion deadwood debris detritus diluvium dirt draff dreg