american-copper Unabridged


1 [kop-er]
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; atomic weight: 63.54; atomic number: 29; specific gravity: 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.
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 ( def 6 ).

before 1000; Middle English coper, Old English coper, copor (cognate with Old Norse koparr, German Kupfer) < Late Latin cuprum, for Latin (aes) Cyprium Cyprian (metal) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To american-copper
World English Dictionary
copper1 (ˈkɒpə)
1.  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°CRelated: cupric, cuprous, cupro-
 b.  (as modifier): a copper coin
2.  a.  the reddish-brown colour of copper
 b.  (as adjective): copper hair
3.  informal any copper or bronze coin
4.  chiefly (Brit) a large vessel, formerly of copper, used for boiling or washing
5.  any of various small widely distributed butterflies of the genera Lycaena, Heodes, etc, typically having reddish-brown wings: family Lycaenidae
6.  (tr) to coat or cover with copper
Related: cupric, cuprous, cupro-
[Old English coper, from Latin Cyprium aes Cyprian metal, from Greek Kupris Cyprus]

copper2 (ˈkɒpə)
a slang word for policeman Often shortened to: cop
[C19: from cop1 (vb) + -er1]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

O.E. coper, from W.Gmc. *kupar, from L.L. cuprum, contraction of L. Cyprium (æs) "Cyprian (metal)," after Gk. Kyprios "Cyprus" (see Cyprus). L. æs was originally "copper," but this was extended to its alloy with tin, bronze, and as this was far more extensively
used than pure copper, the word's primary sense shifted to the alloy and a new word evolved for "copper," from the Latin form of the name of the island of Cyprus, where copper was mined. Aes passed into Gmc. (which originally did not distinguish copper from its alloys) and became Eng. ore (q.v.).
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

copper cop·per (kŏp'ər)
Symbol Cu
A ductile malleable metallic element that is an excellent conductor of heat and electricity and is 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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
copper   (kŏp'ər)  Pronunciation Key 
Symbol Cu
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.
Copper and Stone Age  
See Chalcolithic.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Bible Dictionary

Copper definition

derived from the Greek kupros (the island of Cyprus), called "Cyprian brass," occurs only in the Authorized Version in Ezra 8:27. Elsewhere the Hebrew word (nehosheth) is improperly rendered "brass," and sometimes "steel" (2 Sam. 22:35; Jer. 15:12). The "bow of steel" (Job 20:24; Ps. 18:34) should have been "bow of copper" (or "brass," as in the R.V.). The vessels of "fine copper" of Ezra 8:27 were probably similar to those of "bright brass" mentioned in 1 Kings 7:45; Dan. 10:6. Tubal-cain was the first artificer in brass and iron (Gen. 4:22). Hiram was noted as a worker in brass (1 Kings 7:14). Copper abounded in Palestine (Deut. 8:9; Isa. 60:17; 1 Chr. 22:3, 14). All sorts of vessels in the tabernacle and the temple were made of it (Lev. 6:28; Num. 16:39; 2 Chr. 4:16; Ezra 8:27); also weapons of war (1 Sam. 17:5, 6, 38; 2 Sam. 21:16). Iron is mentioned only four times (Gen. 4:22; Lev. 26:19; Num. 31:22; 35:16) in the first four books of Moses, while copper (rendered "brass") is mentioned forty times. (See BRASS.) We find mention of Alexander (q.v.), a "coppersmith" of Ephesus (2 Tim. 4:14).

Easton's 1897 Bible Dictionary
Cite This Source
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature