copper

noun (1), often attributive

cop·per | \ ˈkä-pər

Definition of copper

(Entry 1 of 3)

1 : a common reddish metallic element that is ductile and malleable and is one of the best 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)

Definition of copper (Entry 3 of 3)

: police officer

History and Etymology for copper

Noun (1)

Middle English coper, from Old English, from Late Latin cuprum copper, from Latin (aes) Cyprium, literally, Cyprian metal

Noun (2)

cop entry 2

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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