copper

名词 copper:

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

同义词：Cu, atomic number 29

a copper penny

uncomplimentary terms for a policeman

同义词：bull, cop, fuzz, pig

a reddish-brown color resembling the color of polished copper

同义词：copper color

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

动词 copper:

coat with a layer of copper