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1. Cu

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.


  • metallic element
  • copper
  • peacock ore
  • brass
  • malachite
  • blister copper
  • conductor
  • chalcocite
  • copper glance
  • cuprite
  • atomic number 29
  • chalcopyrite
  • copper pyrites
  • bornite
  • metal


  • achromatic
  • nonmetallic
  • stuff
  • mineral wool

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Sentences with cu

1. Noun, singular or mass
Tape the cu out piece of filter to the panel with strips of duct tape or masking tape.