sweepwasher
Sweep"wash`er, n. Defn: One who extracts the residuum of precious metals from the sweepings, potsherds, etc., of refineries of gold and silver, or places where these metals are used.
Sweep"wash`er, n. Defn: One who extracts the residuum of precious metals from the sweepings, potsherds, etc., of refineries of gold and silver, or places where these metals are used.