barrel process
Proper noun
Meaning
barrel process
(metalworking) A process of extracting gold or silver by treating the ore in a revolving barrel or drum, with mercury, chlorine, cyanide solution, or other reagent.
Proper noun
barrel process
(metalworking) A process of extracting gold or silver by treating the ore in a revolving barrel or drum, with mercury, chlorine, cyanide solution, or other reagent.