1. 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
Synonym(s): Cu, atomic_number_29
Hypernym(s): metallic_element, metal, conductor
2. copper - noun
· a copper penny
Hypernym(s): penny, cent, centime
3. copper - noun
· uncomplimentary terms for a policeman
Synonym(s): bull, cop, fuzz, pig
Hypernym(s): policeman, police_officer, officer
4. copper - noun
· a reddish-brown color resembling the color of polished copper
Synonym(s): copper_color
Hypernym(s): reddish_brown, sepia, burnt_sienna, Venetian_red, mahogany
5. copper - noun
· any of various small butterflies of the family Lycaenidae having coppery wings
Hypernym(s): lycaenid, lycaenid_butterfly
6. copper - verb
· coat with a layer of copper
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