plural coppers
often attributive
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
Synonyms
Examples of copper in a Sentence
Noun (2)
a crime novel set in the days when policemen were coppers and safecrackers were "yeggs"
Recent Examples on the Web
Sarah Anzlovar, Ms, Rd, Verywell Health, 4 June 2024
Elsewhere in Arizona, Indigenous leaders and religious rights groups are asking the U.S. Supreme Court to block a copper mine on federal lands at Oak Flat, per the Republic’s Debra Utacia Krol.
—Sammy Roth, Los Angeles Times, 4 June 2024
Drinking this water might mean ingesting metals such as lead, copper and iron.
—Sarah Blank, The Conversation, 20 May 2024
The same is true for the company’s nearby Flux Canyon copper find, which Risner said could be reached through the same shaft as the zinc deposit.
—Brandon Loomis, The Arizona Republic, 20 May 2024
See all Example Sentences for copper 
Noun
Minerals such as iron, calcium, iodine, magnesium, selenium, copper, molybdenum, and manganese can also lead to serious side effects if consumed in excess.
—Sarah Anzlovar, Ms, Rd, Verywell Health, 4 June 2024
Elsewhere in Arizona, Indigenous leaders and religious rights groups are asking the U.S. Supreme Court to block a copper mine on federal lands at Oak Flat, per the Republic’s Debra Utacia Krol.
—Sammy Roth, Los Angeles Times, 4 June 2024
Drinking this water might mean ingesting metals such as lead, copper and iron.
—Sarah Blank, The Conversation, 20 May 2024
The same is true for the company’s nearby Flux Canyon copper find, which Risner said could be reached through the same shaft as the zinc deposit.
—Brandon Loomis, The Arizona Republic, 20 May 2024
See all Example Sentences for copper
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'copper.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near copper
Cite this Entry
“Copper.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/copper. Accessed 9 Jun. 2024.
Copy CitationKids Definition
copper
1 of 2 noun
cop·per
ˈkäp-ər 
1
: a reddish metallic element that is one of the best conductors of heat and electricity see element
2
: a copper or bronze coin
3
chiefly British
: a large copper kettle or boiler
4
: any of various small butterflies with usually copper-colored wings
coppery
adjective
ˈkäp-(ə-)rē
copper
2 of 2 nounMedical Definition
copper
noun
cop·per
ˈkäp-ər
often attributive
: 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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