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copper n. [
Cu, atomic number 29] 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
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copper v. coat with a layer of copper
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copper n. a copper penny
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copper n. [
bull, cop, fuzz, pig] uncomplimentary terms for a policeman
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copper n. [
copper color] a reddish-brown color resembling the color of polished copper
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