copper

[US]/ˈkɒpə(r)/
[UK]/ˈkɑːpər/
Frequency: Very High

Translation

adj.made of or resembling copper
vt.to plate or coat with copper
n.a metal element with the symbol Cu and atomic number 29
a unit of currency made of copper
[slang] a police officer

Phrases & Collocations

copper wire

copper alloy

copper pipe

copper sulfate

copper mine

copper ore

copper tube

copper powder

copper clad

copper foil

copper plating

pure copper

jiangxi copper

copper plate

copper concentrate

copper oxide

electrolytic copper

copper content

red copper

copper strip

Example Sentences

a flexible copper braid.

I'm not a copper's nark.

a reel of copper wire.

Copper wire is flexible.

a crucifix of copper

exploitation of copper deposits.

the young copper swung a terrific right.

long runs of copper piping.

Copper is a good conductor of electricity.

Copper is a good conductor of heat.

Copper conducts electricity well.

Brass is an alloy of copper and zinc.

Experiment on determination of trace Argentum in copper coneentrace ore was done.Method of inhibition of Copper to determine Argentum was studied.

Experiment on determination of trace Argentum in copper concentrace ore was done.Method of inhibition of Copper to determine Argentum was studied.

Real-world Examples

A one-cent copper coin could be exchanged for three copper coins.

Source: Comprehensive Guide to Financial English Speaking

Aurubis, Europe's largest copper producer, is also the world's largest copper recycler.

Source: National Geographic Anthology

The entire building is shielded in copper mesh.

Source: Person of Interest Season 5

A small pair of shoes with copper tips!

Source: American Elementary School English 3

Unlike copper cables, which transmit electrical energy, fiber optic cables transmit light.

Source: CNN Selected May 2016 Collection

Think of it as copper being a crossing guard.

Source: Fitness Knowledge Popularization

And blue green came from copper.

Source: One Hundred Thousand Whys

This wire is made of copper.

Source: Lai Shixiong Basic English Vocabulary 2000

Until about 1902, legal food preservatives included chemicals like formaldehyde, borax and copper sulfate.

Source: CNN 10 Student English November 2017 Collection

The archeologists found some ancient copper coins in the tomb.

Source: New Concept English: Vocabulary On-the-Go, Book 2.

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