- copper cop‧per [ˈkɒpə ǁ ˈkɑːpər] noun
• On Friday, copper for March delivery ended at 98.9 cents a pound, up 1.9 cents.
• The company is a major producer of copper products.2. coppers [plural] coins of low value made of copper or other dark-coloured metals:
• He counted out three pounds, all in coppers.
Financial and business terms. 2012.