Definitions

1. noun

a reddish-brown chemical element (symbol Cu) with a face-centered cubic crystalline structure and a high ductility and malleability, highly valued as a conductor of electricity.

“The new electrical wiring was made of high-quality copper.”

2. noun

a reddish-brown colour or pigment having a similar colour.

“The artist used copper paint to create the beautiful sunset.”

3. adjective

made of or relating to copper.

“Copper pipes were used in the old house for plumbing.”

4. verb

to cover or coat with a reddish-brown colour or pigment, especially to dye or colour something a reddish-brown colour.

“The fabric was coppered to give it a vintage look.”

5. verb

to make or become reddish-brown in colour, especially to turn or become brownish-red, as if coppered.

“The metal started to copper in the fire.”