A Copper

1. (uncountable) A reddish-brown, malleable, ductile metallic element with high electrical and thermal conductivity, symbol Cu, and atomic number 29.
2. The reddish-brown colour/color of copper.

copper:

3. (countable, dated) Any of various specialized items that are made of copper, where the use of copper is either traditional or vital to the function of the item.
   1. (countable) A copper coin, typically of a small denomination, such as a penny.
   2. (Britain, Australia, dated) A large pot, often used for heating water or washing clothes over a fire. In Australasia at least, it could also be a fixed installation made of copper, with a fire underneath and its own chimney. Generally made redundant by the advent of the washing machine.
4. (entomology) Any of various lycaenid butterflies with copper-coloured upperwings, especially those of the genera Lycaena and Paralucia.

Synonyms

• (color): chestnut, russet