Main Entry: dross

Pronunciation: \ˈdräs, ˈdrȯs\

Function: noun

Etymology: Middle English dros, from Old English drōs dregs

Date: before 12th century

1 : the scum that forms on the surface of molten metal
2 : waste or foreign matter : impurity
3 : something that is base, trivial, or inferior

— drossy \ˈdrä-sē, ˈdrȯ-\ adjective