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copper
1[kop-er]
noun
a malleable, ductile, metallic element having a characteristic reddish-brown color: used in large quantities as an electrical conductor and in the manufacture of alloys, as brass and bronze. Cu; 63.54; 29; 8.92 at 20°C.
a metallic reddish brown.
a coin composed of copper, bronze, or the like, as the U.S. cent or the British penny.
any of several butterflies of the family Lycaenidae, as Lycaena hypophleas American copper, having copper-colored wings spotted and edged with black.
a container made of copper.
a tool partly or wholly made of copper.
a soldering copper.
British.a large kettle, now usually made of iron, used for cooking or to boil laundry.
adjective
made of copper.
copper kettles.
reddish-brown; coppery.
The copper sun sank into the sea.
verb (used with object)
to cover, coat, or sheathe with copper.
Informal.hedge.
copper
2[kop-er]
noun
copper
1/ ˈɒə /
noun
a malleable ductile reddish metallic element occurring as the free metal, copper glance, and copper pyrites: used as an electrical and thermal conductor and in such alloys as brass and bronze. Symbol: Cu; atomic no: 29; atomic wt: 63.546; valency: 1 or 2; relative density: 8.96; melting pt: 1084.87±+0.2°C; boiling pt: 2563°C
( as modifier )
a copper coin
the reddish-brown colour of copper
( as adjective )
copper hair
informalany copper or bronze coin
a large vessel, formerly of copper, used for boiling or washing
any of various small widely distributed butterflies of the genera Lycaena, Heodes, etc, typically having reddish-brown wings: family Lycaenidae
verb
(tr) to coat or cover with copper
copper
2/ ˈɒə /
noun
Often shortened to: cop.a slang word for policeman
copper
A reddish-brown, ductile, malleable metallic element that is an excellent conductor of heat and electricity. It is widely used for electrical wires, water pipes, and rust-resistant parts, either in its pure form or in alloys such as brass and bronze. Atomic number 29; atomic weight 63.546; melting point 1,083°C; boiling point 2,595°C; specific gravity 8.96; valence 1, 2.
See Periodic Table See Note at element
Other Word Forms
- ˈDZ adjective
Word History and Origins
Origin of copper1
Word History and Origins
Origin of copper1
Origin of copper2
Example Sentences
An attempted — and unsuccessful — copper theft in Van Nuys caused a widespread internet outage Sunday affecting swaths of Los Angeles and Ventura counties, a Spectrum spokesman confirmed to The Times.
If these aren't not disposed of properly, they can leak toxic compounds such as cobalt and copper.
"And the rusting metal in there is starting to leach. The iron and nickel and copper is leaching out over the rocks and it looks unsightly."
“The Resolution Copper mine is vital to securing America’s energy future, infrastructure needs, and national defense with a domestic supply of copper and other critical minerals,” Peacey said.
Critics of the zinc and copper coin say producing it is a waste of money and resources, while those who want to keep it argue it keeps prices lower and boosts fund-raising for charities.
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