Copper

n. (Cu) metallic chemical element; boiler; large copper or iron cooking pot (British); coin made of copper or bronze; reddish-brown color; any of the small butterflies with copper color wings; cop, police officer (British Slang)

v. coat with or cover with copper; bet against (Slang)

Copper (, ) is a chemical element in the periodic table that has the symbol Cu and atomic number 29. It is a ductile metal with excellent electrical conductivity, and finds extensive use as an electrical conductor, heat conductor, as a building material, and as a component of various alloys. Copper is an essential trace nutrient to all high plants and animals. In animals, including humans, it is found primarily in the bloodstream, as a co-factor in various enzymes, and in copper-based pigments. However, in sufficient amounts, copper can be poisonous and even fatal to organisms.Copper has played a significant part in the history of mankind, which has used the easily accessible uncompounded metal for nearly 10,000 years. Civilizations in places such as Iraq, China, Egypt, Greece and the Sumerian cities all have early evidence of using copper. During the Roman Empire, copper was principally mined on Cyprus, hence the origin of the name of the metal as Cyprium, "metal of Cyprus", later shortened to Cuprum. A number of countries, such as Chile and the United States, still have sizable reserves of the metal which are extracted through large open pit mines. Nevertheless, the price of copper has risen rapidly, increasing 500 rom a 60-year low in 1999, largely due to increased demand. The Earth has an estimated 61 years of copper reserves remaining.
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Copper /cop·per/ a chemical element, at. no. 29. It is an essential dietary trace element, a necessary component of several enzymes, but is toxic in [more]Copper - Community and Resources

Noun
1. 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
(synonym) Cu, atomic number 29
(hypernym) metallic element, metal
(hyponym) blister copper
(substance-holonym) brass
2. a copper penny
(hypernym) penny, cent, centime
3. uncomplimentary terms for a policeman
(synonym) bull, cop, fuzz, pig
(hypernym) policeman, police officer, officer
(classification) colloquialism
4. a reddish brown the color of polished copper
(synonym) copper color
(hypernym) reddish brown, sepia, burnt sienna, Venetian red
5. any of various small butterflies of the family Lycaenidae having copper colored wings
(hypernym) lycaenid, lycaenid butterfly
(hyponym) American copper, Lycaena hypophlaeas
(member-holonym) Lycaena, genus Lycaena
Verb
1. coat with a layer of copper
(hypernym) coat, surface
(derivation) Cu, atomic number 29

(v. t.)
To cover or coat with copper; to sheathe with sheets of copper; as, to copper a ship.
  

(n.)
the boilers in the galley for cooking; as, a ship's coppers.
  

(n.)
A vessel, especially a large boiler, made of copper.
  

(n.)
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.
  

(n.)
A coin made of copper; a penny, cent, or other minor coin of copper.