Also found in: Thesaurus, Medical, Financial, Acronyms, Idioms, Encyclopedia, Wikipedia.

cop·per 1

1. Symbol Cu A ductile, malleable, reddish-brown metallic element that is an excellent conductor of heat and electricity and is widely used for electrical wiring, water piping, and corrosion-resistant parts, either pure or in alloys such as brass and bronze. Atomic number 29; atomic weight 63.546; melting point 1,085°C; boiling point 2,562°C; specific gravity 8.96; valence 1, 2. See Periodic Table.
2. A coin, usually of small denomination, made of copper or a copper alloy.
3. Chiefly British A large cooking pot made of copper or often of iron.
4. Any of various small butterflies of the subfamily Lycaeninae, having predominantly copper-colored wings.
5. A reddish brown.
tr.v. cop·pered, cop·per·ing, cop·pers
1. To coat or finish with a layer of copper.
2. Slang To bet against, as in faro.

[Middle English coper, from Old English, from Late Latin cuprum, from Latin Cyprium (aes), Cyprian (metal), from Cyprius, of Cyprus, from Greek Kuprios, from Kupros, Cyprus.]

cop′per·y adj.

cop·per 2

n. Slang
A police officer.

[From cop.]


1. (Elements & Compounds)
a. 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. cupriccuprouscupro-
b. (as modifier): a copper coin.
2. (Colours)
a. the reddish-brown colour of copper
b. (as adjective): copper hair.
3. (Currencies) informal any copper or bronze coin
4. chiefly Brit a large vessel, formerly of copper, used for boiling or washing
5. (Animals) any of various small widely distributed butterflies of the genera Lycaena, Heodes, etc, typically having reddish-brown wings: family Lycaenidae
(Metallurgy) (tr) to coat or cover with copper
[Old English coper, from Latin Cyprium aes Cyprian metal, from Greek Kupris Cyprus]
ˈcoppery adj


(Law) a slang word for policeman Often shortened to: cop
[C19: from cop1 (vb) + -er1]


(ˈkɒp ər)
1. 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. Symbol: Cu; at. wt.: 63.54; at. no.: 29; sp. gr.: 8.92 at 20°C.
2. a metallic reddish brown.
3. a coin composed of copper or bronze.
4. any of several butterflies of the family Lycaenidae, as Lycaena hypophleas (American copper), having copper-colored wings spotted and edged with black.
5. Brit. a large kettle, as for cooking.
6. to cover, coat, or sheathe with copper.
[before 1000; Middle English coper, Old English coper, copor (compare Old High German kupfar, Old Norse koparr) < Late Latin cuprum, for Latin (aes) Cyprium (metal) of Cyprus]
cop′per•y, adj.


(ˈkɒp ər)

n. Slang.
[1840–50; perhaps cop1]


Symbol Cu A reddish-brown, easily shaped metallic element that is an excellent conductor of heat and electricity. It is widely used for electrical wiring, water piping, and rust-resistant parts, either in its pure form or in alloys such as brass and bronze. Atomic number 29. See Periodic Table. See Note at element.


Past participle: coppered
Gerund: coppering

I copper
you copper
he/she/it coppers
we copper
you copper
they copper
I coppered
you coppered
he/she/it coppered
we coppered
you coppered
they coppered
Present Continuous
I am coppering
you are coppering
he/she/it is coppering
we are coppering
you are coppering
they are coppering
Present Perfect
I have coppered
you have coppered
he/she/it has coppered
we have coppered
you have coppered
they have coppered
Past Continuous
I was coppering
you were coppering
he/she/it was coppering
we were coppering
you were coppering
they were coppering
Past Perfect
I had coppered
you had coppered
he/she/it had coppered
we had coppered
you had coppered
they had coppered
I will copper
you will copper
he/she/it will copper
we will copper
you will copper
they will copper
Future Perfect
I will have coppered
you will have coppered
he/she/it will have coppered
we will have coppered
you will have coppered
they will have coppered
Future Continuous
I will be coppering
you will be coppering
he/she/it will be coppering
we will be coppering
you will be coppering
they will be coppering
Present Perfect Continuous
I have been coppering
you have been coppering
he/she/it has been coppering
we have been coppering
you have been coppering
they have been coppering
Future Perfect Continuous
I will have been coppering
you will have been coppering
he/she/it will have been coppering
we will have been coppering
you will have been coppering
they will have been coppering
Past Perfect Continuous
I had been coppering
you had been coppering
he/she/it had been coppering
we had been coppering
you had been coppering
they had been coppering
I would copper
you would copper
he/she/it would copper
we would copper
you would copper
they would copper
Past Conditional
I would have coppered
you would have coppered
he/she/it would have coppered
we would have coppered
you would have coppered
they would have coppered
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.copper - a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic elementcopper - 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
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
bornite, peacock ore - a mineral consisting of sulfides of copper and iron that is found in copper deposits
chalcocite, copper glance - a heavy grey mineral that is an ore of copper
chalcopyrite, copper pyrites - a yellow copper ore (CuFeS2) made up of copper and iron sulfide
cuprite - a mineral consisting of cuprous oxide that is a source of copper
malachite - a green or blue mineral used as an ore of copper and for making ornamental objects
brass - an alloy of copper and zinc
bronze - an alloy of copper and tin and sometimes other elements; also any copper-base alloy containing other elements in place of tin
blister copper - an impure form of copper having a black blistered surface
conductor - a substance that readily conducts e.g. electricity and heat
2.copper - a copper penny
cent, centime, penny - a coin worth one-hundredth of the value of the basic unit
3.copper - uncomplimentary terms for a policemancopper - uncomplimentary terms for a policeman
colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech
police officer, policeman, officer - a member of a police force; "it was an accident, officer"
4.copper - a reddish-brown color resembling the color of polished coppercopper - a reddish-brown color resembling the color of polished copper
burnt sienna, reddish brown, sepia, Venetian red, mahogany - a shade of brown with a tinge of red
5.copper - any of various small butterflies of the family Lycaenidae having coppery wings
lycaenid, lycaenid butterfly - any of various butterflies of the family Lycaenidae
genus Lycaena, Lycaena - type genus of the Lycaenidae; small slender butterflies with upper surface of wings usually metallic blue or green or copper
American copper, Lycaena hypophlaeas - common copper butterfly of central and eastern North America
Verb1.copper - coat with a layer of copper
coat, surface - put a coat on; cover the surface of; furnish with a surface; "coat the cake with chocolate"


Related words
adjectives cupric, cuprous
prefix cupro-


Slang. A member of a law-enforcement agency:
Informal: cop, law.
Slang: bull, flatfoot, fuzz, gendarme, heat, man (often uppercase).
Chiefly British: bobby, constable, peeler.
شُّرطيعِملَـة نُحاسِيَّـهنُحَاسنُحاس أحْمَرنُحاسي
měďměďákměděné barvyměděnýpolda
policistssarkanbrūnssīknaudavara-vara krāsā
bakırbakır parabakır rengibakırdan yapılmışmangır
đồngđồng đỏ


A. N
1. (= material) → cobre m
2. (= utensil) → caldera f de lavar
3. (Brit) (= coin) → perra f (chica), centavo m (LAm); (= penny) → penique m
it costs a few coppersvale unos peniques
4. (Brit)
see cop A1
1. (= made of copper) → de cobre
2. (= colour) → cobrizo
C. CPD copper beech Nhaya f roja or de sangre
copper sulphate Nsulfato m de cobre


(= metal) → cuivre m
(= policeman) → flic m coppers
nplpetite monnaie f
modif [bracelet, pan, coin] → en cuivre, de cuivre
a copper bracelet → un bracelet en cuivre copper wirecopper beech nhêtre m pourprecopper-coloured [ˈkɒpərkʌlərd] adjcuivré(e)copper sulphate nsulfate m de cuivrecopper wire nfil m de cuivre


(= metal)Kupfer nt; copper oreEisenerz nt; copper sulphateKupfersulfat nt, → Kupfervitriol nt
(= colour)Kupferrot nt
(esp Brit inf: = coin) → Cent m; coppersKleingeld nt
(inf: = policeman) → Polizist(in) m(f), → Bulle m (pej inf)
(for boiling clothes etc) → Kupferkessel f, → Waschkessel m


copper beech
nRotbuche f
adjmit Kupferboden; (Fin, fig) → gesund
copper mine
nKupfermine f
n (inf)Rotkopf m (inf)
(= plate for engraving)Kupferplatte f; (= engraving)Kupferstich m
(= handwriting)lateinische (Ausgangs)schrift
adj copper engravingKupferstich m; (= process also)Kupferstechen nt; copper (hand)writinglateinische (Ausgangs)schrift; in your best copper writingin deiner besten Sonntagsschrift
nVerkupferung f


1. n
a.rame m; (coin) → monetina coppers nplspiccioli mpl
b. (Brit) (fam) (police) → poliziotto/a
2. adj (wire, kettle) → di rame; (colour) → (color) rame inv, ramato/a


(ˈkopə) noun
1. an element, a metal of a brownish-red colour. This pipe is made of copper.
2. (a piece of) money made of copper or a substitute. Have you any coppers in your change?
1. made of copper. a copper pipe.
2. (also ˈcopper-coloured) of the colour of copper.


(ˈkopə) noun
a British nickname for a policeman. Run – there's a copper after you!


نُحَاس meď kobber Kupfer χαλκός cobre kupari cuivre bakar rame 구리 koper kopper miedź cobre медь koppar ทองแดง bakır đồng đỏ


n cobre m; — sulfate sulfato de cobre
References in classic literature ?
He was only about as tall as Dorothy herself, and his body was round as a ball and made out of burnished copper. Also his head and limbs were copper, and these were jointed or hinged to his body in a peculiar way, with metal caps over the joints, like the armor worn by knights in days of old.
'You are a fine fellow!' said the Soldier, and put him on the Witch's apron, took as much copper as his pockets could hold; then he shut the chest, put the dog on it again, and went into the second room.
In a frenzy of despair, I bent to the grandfather of all paddles in a hopeless effort to escape, and still the copper giant behind me gained and gained.
[Explaining to the note taker] She thought you was a copper's nark, sir.
"There is a small copper mine in Utah called the Royal Hardwell Copper Mine.
The texture of the waistcoat was held together by bands of copper, which crossed the chest, protecting it from the great pressure of the water, and leaving the lungs free to act; the sleeves ended in gloves, which in no way restrained the movement of the hands.
It was called Mill Pond Bank, Chinks's Basin; and I had no other guide to Chinks's Basin than the Old Green Copper Rope-Walk.
When the big fellows wanted to unload Little Copper, they sent Jakey Fallow into the New York Stock Exchange to yell out: 'I'll buy all or any part of Little Copper at fifty five,' Little Copper being at fifty-four.
Momaya was determined to give all that Bukawai asked if she could do no better, but haggling is second nature to black barterers, and in the end it partly repaid her, for a compromise finally was reached which included three fat goats, a new sleeping mat, and a piece of copper wire.
The Copper Beeches, five miles on the far side of Winchester.
See with what entire freedom the whaleman takes his handful of lamps --often but old bottles and vials, though --to the copper cooler at the try-works, and replenishes them there, as mugs of ale at a vat.
The ore is yellow pyrites, which, as I have already remarked, before the arrival of the English, was not supposed to contain a particle of copper. On a scale of profits nearly as great as in the above instance, piles of cinders, abounding with minute globules of metallic copper, were purchased; yet with these advantages, the mining associations, as is well known, contrived to lose immense sums of money.