copper

noun

/ˈkɒpə(r)/

/ˈkɑːpər/

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[uncountable]
(symbol Cu)
a chemical element. Copper is a soft red-brown metal used for making electric wires, pipes and coins.
- a copper mine
- copper pipes
- copper-coloured hair
Extra Examples
- Her hair shone like burnished copper.
- She works mainly in copper.
- copper alloyed with arsenic
Topics Physics and chemistryc1
Oxford Collocations Dictionary
adjective
- pure
- molten
- beaten
- …
verb + copper
- mine
- produce
- contain
- …
copper + noun
- mine
- miner
- mining
- …
preposition
- in copper
phrases
- an alloy of copper and something
- an alloy of copper with something
See full entry
coppers
[plural] (British English) brown coins that do not have much value
- I only paid a few coppers for it.
[countable] (British English, informal) a police officer
- Apparently, her dad's a copper.
- There are a couple of coppers waiting outside.
Topics Law and justicec2

Word Originsenses 1 to 2 Old English copor, coper (related to Dutch koper and German Kupfer), based on late Latin cuprum, from Latin cyprium aes ‘Cyprus metal’ (so named because Cyprus was the chief source).sense 3 mid 19th cent.: from cop + -er.

单词	copper
释义	copper noun /ˈkɒpə(r)/ /ˈkɑːpər/ jump to other results [uncountable] (symbol Cu) a chemical element. Copper is a soft red-brown metal used for making electric wires, pipes and coins. a copper mine copper pipes copper-coloured hair Extra Examples Her hair shone like burnished copper. She works mainly in copper. copper alloyed with arsenic Topics Physics and chemistryc1 Oxford Collocations Dictionaryadjective pure molten beaten … verb + copper mine produce contain … copper + noun mine miner mining … preposition in copper phrases an alloy of copper and something an alloy of copper with something See full entry coppers [plural] (British English) brown coins that do not have much value I only paid a few coppers for it. [countable] (British English, informal) a police officer Apparently, her dad's a copper. There are a couple of coppers waiting outside. Topics Law and justicec2 Word Originsenses 1 to 2 Old English copor, coper (related to Dutch koper and German Kupfer), based on late Latin cuprum, from Latin cyprium aes ‘Cyprus metal’ (so named because Cyprus was the chief source).sense 3 mid 19th cent.: from cop + -er.
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