copper

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English[edit]

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Copper in its natural state.
Chemical element
Cu Previous: nickel (Ni)
Next: zinc (Zn)

Pronunciation[edit]

Etymology 1[edit]

From Middle English coper, from Old English coper, copor (“copper”), from Late Latin cuprum (“copper”), contraction of Latin (aes) Cyprium (literally “brass of Cyprus”), from Ancient Greek Κύπρος (Kúpros, “Cyprus”). Cognate with Dutch koper (“copper”), German Kupfer (“copper”), Icelandic kopar (“copper”).

Noun[edit]

copper (countable and uncountable, plural coppers)

  1. (uncountable) a reddish-brown, malleable, ductile metallic element with high electrical and thermal conductivity, symbol Cu, and atomic number 29.
  2. (countable) Something made of copper.
  3. The reddish-brown colour/color of copper.
    copper colour:    
  4. (countable) A copper coin.
    • Benjamin Franklin (1706-1790)
      My friends filled my pockets with coppers.
    • 1909, Archibald Marshall, The Squire's Daughter, chapterII:
      "I don't want to spoil any comparison you are going to make," said Jim, "but I was at Winchester and New College." ¶ "That will do," said Mackenzie. "I was dragged up at the workhouse school till I was twelve. Then I ran away and sold papers in the streets, and anything else that I could pick up a few coppers by—except steal. […]."
  5. (UK, archaic) A large pot, often used for heating water or washing clothes over a fire. In Australasia at least, it could also be a fixed installation made of copper, with a fire underneath and its own chimney. Generally made redundant by the advent of the washing machine.
    Mum would heat the water in a copper in the kitchen and transfer it to the tin bath.
    I explain that socks can’t be boiled up in the copper with the sheets and towels or they shrink.
    • 1797, Dyeing, article in Colin Macfarquhar, George Gleig (editors), Encyclopædia Britannica: or, A Dictionary of Arts, Sciences, and Miscellaneous Literature, Volume 6, Part 1 p.207:
      When the water in the copper boils, the arsenic and tartar, well pounded, is put into it, and kept boiling till the liquor is reduced to about half.
Synonyms[edit]
Derived terms[edit]
terms derived from copper
Related terms[edit]
terms related to copper
Translations[edit]

Adjective[edit]

copper (comparative more copper, superlative most copper)

  1. Made of copper.
  2. Having the reddish-brown colour/color of copper.
    • Coleridge
      All in a hot and copper sky,
      The bloody Sun, at noon,
      Right up above the mast did stand,
      No bigger than the Moon.
Synonyms[edit]
  • (made of copper):
  • (having the colour/color of copper): coppery
Translations[edit]

Verb[edit]

copper (third-person singular simple present coppers, present participle coppering, simple past and past participle coppered)

  1. To sheathe or coat with copper.

See also[edit]

Items relating to subject of copper

Etymology 2[edit]

From cop (verb) (“to take, capture”) +‎ -er (“agent suffix”)

Noun[edit]

copper (plural coppers)

  1. (slang, law enforcement) A police officer.
Synonyms[edit]
Related terms[edit]
Translations[edit]
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