copper cop‧per [ˈkɒpə ǁ ˈkɑːpər] noun
1. [uncountable] a reddish-brown metal used, among other things, for making wire and cable S:

• 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.

/ , / , (esp. in a ship's kitchen)