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copper Definition
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copper
noun(cop-per)a common reddish metallic element that is ductile and malleable and is one of the best conductors of heat and electricity
copper
noun(cop-per)a coin or token made of copper or bronze
copper
noun(cop-per)a large boiler (as for cooking)
copper
verb(cop-per)to coat or sheathe with or as if with copper
copper
noun(cop-per)police officer
copper
noun(cop-per)a beech with shining coppery-red leaves that is a widely planted cultivar of a beech (Fagus sylvatica) native to Europe
copper
noun(cop-per)chalcopyrite
copper
noun(cop-per)a sulfate of copper; especially : the normal sulfate that is white in the anhydrous form but blue in the crystalline hydrous form CuSO4·5H2O and that is often used as an algicide and fungicide
copper
geographical name(cop-per)region of northwestern Mexico in the state of Chihuahua comprising numerous deep canyons in the Sierra Madre Occidental
copper
adjective(cop-per)having a copper coating on the bottom
copper
adjective(cop-per)deserving to be trusted : certain to succeed
copper
noun(cop-per)a chemical combination of chromium, copper, and arsenic used to protect wood against insects and decay —abbreviation CCA