copper

Noun

• any of various small butterflies of the family Lycaenidae having coppery wings

• a reddish-brown color resembling the color of polished copper

• uncomplimentary terms for a policeman

• a copper penny

• 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

Verb

• coat with a layer of copper

Related words

• Synonyms: 
  copper color , bull , cop , fuzz , pig , Cu , atomic number 29