Definitions for copper
ˈkɒp ərcop·per

Princeton's WordNet(0.00 / 0 votes)Rate this definition:

1. copper, Cu, atomic number 29(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

2. copper(noun)

   a copper penny

3. bull, cop, copper, fuzz, pig(noun)

   uncomplimentary terms for a policeman

4. copper, copper color(noun)

   a reddish-brown color resembling the color of polished copper

5. copper(verb)

   any of various small butterflies of the family Lycaenidae having coppery wings

6. copper(verb)

   coat with a layer of copper

Webster Dictionary(0.00 / 0 votes)Rate this definition:

1. Copper(noun)

   a common metal of a reddish color, both ductile and malleable, and very tenacious. It is one of the best conductors of heat and electricity. Symbol Cu. Atomic weight 63.3. It is one of the most useful metals in itself, and also in its alloys, brass and bronze

   Etymology: [OE. coper (cf. D. koper, Sw. koppar, Dan. kobber, G. kupfer), LL. cuper, fr. L. cuprum for earlier Cyprium, Cyprium aes, i.e., Cyprian brass, fr. Gr. of Cyprus (Gr. ), anciently renowned for its copper mines. Cf. Cypreous.]

2. Copper(noun)

   a coin made of copper; a penny, cent, or other minor coin of copper

   Etymology: [OE. coper (cf. D. koper, Sw. koppar, Dan. kobber, G. kupfer), LL. cuper, fr. L. cuprum for earlier Cyprium, Cyprium aes, i.e., Cyprian brass, fr. Gr. of Cyprus (Gr. ), anciently renowned for its copper mines. Cf. Cypreous.]

3. Copper(noun)

   a vessel, especially a large boiler, made of copper

   Etymology: [OE. coper (cf. D. koper, Sw. koppar, Dan. kobber, G. kupfer), LL. cuper, fr. L. cuprum for earlier Cyprium, Cyprium aes, i.e., Cyprian brass, fr. Gr. of Cyprus (Gr. ), anciently renowned for its copper mines. Cf. Cypreous.]

4. Copper(noun)

   the boilers in the galley for cooking; as, a ship's coppers

   Etymology: [OE. coper (cf. D. koper, Sw. koppar, Dan. kobber, G. kupfer), LL. cuper, fr. L. cuprum for earlier Cyprium, Cyprium aes, i.e., Cyprian brass, fr. Gr. of Cyprus (Gr. ), anciently renowned for its copper mines. Cf. Cypreous.]

5. Copper(verb)

   to cover or coat with copper; to sheathe with sheets of copper; as, to copper a ship

   Etymology: [OE. coper (cf. D. koper, Sw. koppar, Dan. kobber, G. kupfer), LL. cuper, fr. L. cuprum for earlier Cyprium, Cyprium aes, i.e., Cyprian brass, fr. Gr. of Cyprus (Gr. ), anciently renowned for its copper mines. Cf. Cypreous.]

Freebase(2.50 / 2 votes)Rate this definition:

1. Copper

   Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; a freshly exposed surface has a reddish-orange color. It is used as a conductor of heat and electricity, a building material, and a constituent of various metal alloys. The metal and its alloys have been used for thousands of years. In the Roman era, copper was principally mined on Cyprus, hence the origin of the name of the metal as сyprium, later shortened to сuprum. Its compounds are commonly encountered as copper salts, which often impart blue or green colors to minerals such as azurite and turquoise and have been widely used historically as pigments. Architectural structures built with copper corrode to give green verdigris. Decorative art prominently features copper, both by itself and as part of pigments. Copper is essential to all living organisms as a trace dietary mineral because it is a key constituent of the respiratory enzyme complex cytochrome c oxidase. In molluscs and crustacea copper is a constituent of the blood pigment hemocyanin, which is replaced by the iron-complexed hemoglobin in fish and other vertebrates. The main areas where copper is found in humans are liver, muscle and bone. Copper compounds are used as bacteriostatic substances, fungicides, and wood preservatives.

Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition:

1. Copper

   kop′ėr, n. a moderately hard metal of a fine red colour, perhaps the first metal employed by man: money made of copper—e.g. 'a copper' = a penny or halfpenny: a vessel made of copper.—adj. made of copper: copper-coloured.—v.t. to cover with copper.—adj. Copp′er-bott′omed, having the bottom covered with copper, as a ship—n. Copp′er-cap′tain, one who styles himself captain without grounds.—adjs. Copp′er-faced, faced with copper, as type; Copp′er-fas′tened, fastened with copper bolts.—ns. Copp′er-head, a United States snake: (U.S.) a northern sympathiser with the South in the Civil War; Copp′ering, the act of sheathing with copper: a covering of copper.—adjs. Copp′erish, Copp′ery, Cū′preous, containing or like copper.—ns. Copp′er-nick′el, arsenical nickel, niccolite; Copp′er-nose, a red nose caused by intemperance; Copp′erplate, a plate of polished copper on which something has been engraved: an impression taken from the plate; Copp′er-pyrī′tes, a double sulphide of copper and iron of yellow hue; Copp′er-smith, a smith who works in copper; Copp′er-work, a place where copper is wrought or manufactured; Copp′erworm, the ship-worm.—Hot coppers, parched tongue and throat after a bout of drinking. [Low L. cuper—L. cuprum, a contr. of cyprium aes, 'Cyprian brass,' because found in Cyprus.]

The New Hacker's Dictionary(0.00 / 0 votes)Rate this definition:

1. copper

   Conventional electron-carrying network cable with a core conductor of copper — or aluminum! Opposed to light pipe or, say, a short-range microwave link.

U.S. National Library of Medicine(0.00 / 0 votes)Rate this definition:

1. Copper

   A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55.

Suggested Resources(0.00 / 0 votes)Rate this definition:

1. copper

   The copper symbol -- In this Symbols.com article you will learn about the meaning of the copper symbol and its characteristic.

2. copper

   Song lyrics by copper -- Explore a large variety of song lyrics performed by copper on the Lyrics.com website.

Etymology and Origins(0.00 / 0 votes)Rate this definition:

1. Copper

   A policeman, from the thieves’ slang cop, to take, catch.

British National Corpus

1. Written Corpus Frequency

   Rank popularity for the word 'copper' in Written Corpus Frequency: #3942

2. Nouns Frequency

   Rank popularity for the word 'copper' in Nouns Frequency: #1928

How to pronounce copper?

1. 

   Alex

   US English

   

   Daniel

   British

   

   Karen

   Australian

   

   Veena

   Indian

How to say copper in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of copper in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of copper in Pythagorean Numerology is: 1

Examples of copper in a Sentence

1. Chief Executive Richard Adkerson:

   The scarcity of quality assets in the copper business is attracting significant interest from potential purchasers who share our longer term positive view of the marketplace.

2. Geoffrey Marcy:

   If the Milky Way actually has other intelligent species sending their spacecraft across the galaxy to settle around other stars on other planets, they might communicate using lasers, there could be a galactic Internet not borne by copper wires, not borne by fiber optics, but carried by laser beams crisscrossing the galaxy.

3. Yang Changhua:

   But expected additional copper from the Oyu Tolgoi mine would pile pressure on the global copper market, which is not likely to improve strongly in the coming two years.

4. Christopher Beaucher:

   I switched the light on and the whole building exploded because, apparently, they had taken the copper pipes and they had not shut the gas off, the house is completely destroyed, nothing left.

5. Daniel Malchuk:

   Over this period, the release of latent capacity across the portfolio will also help annual group copper production grow to approximately 1.7 million tonnes at very low cost.

Images & Illustrations of copper

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