copper

noun (1), often attributive

cop·per | \ ˈkä-pər

plural coppers

Definition of copper

(Entry 1 of 3)

1 : a metallic chemical element that is easily formed into sheets and wires and is one of the best known conductors of heat and electricity — see Chemical Elements Table

2 : a coin or token made of copper or bronze

3 chiefly British : a large boiler (as for cooking)

4 : any of a subfamily (Lycaeninae of the family Lycaenidae) of small butterflies with usually copper-colored wings

copper

verb

coppered; coppering\ ˈkä-p(ə-)riŋ

Definition of copper (Entry 2 of 3)

transitive verb

: to coat or sheathe with or as if with copper

copper

noun (2)

plural coppers

Definition of copper (Entry 3 of 3)

: police officer

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Last Updated

17 Sep 2019

Time Traveler for copper

The first known use of copper was before the 12th century

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More Definitions for copper

copper

noun

cop·per | \ ˈkä-pər

Kids Definition of copper

1 : a tough reddish metallic chemical element that is one of the best conductors of heat and electricity

2 : a reddish brown color copper hair

copper

noun, often attributive

cop·per | \ ˈkäp-ər

Medical Definition of copper

: a common reddish metallic element that is ductile and malleable and one of the best conductors of heat and electricity —symbol Cu — see Chemical Elements Table

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