dross

  1. Noun.  Waste or impure matter.
  2. Noun.  Worthless or trivial matter.
  3. Noun.  Residue that forms on the surface of a metal from oxidation.
  4. Noun.  The impurities in metal.
  5. Noun.  A waste product from working with metal.

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This entry was last updated on RefTopia from its source on 3/20/2012.