Dictionary definition · copper
noun
- a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
- a copper penny
- uncomplimentary terms for a policeman
- a reddish-brown color resembling the color of polished copper
- any of various small butterflies of the family Lycaenidae having coppery wings
verb
- coat with a layer of copper
Similar words
Source: Open English WordNet (CC BY 4.0).