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TOEFL BNC: 3656 COCA: 5053

copper

Word family 
Related topics: Colours, Police, Elements
cop·per /ˈkɒpə $ ˈkɑːpər/ ●●○ noun  
1. [uncountableU]HCM a soft reddish-brown metal that allows electricity and heat to pass through it easily, and is used to make electrical wires, water pipes etc. It is a chemical element: symbol Cu 铜〔一种化学元素，符号为Cu〕
2  coppers [plural] British EnglishBrEPEC money of low value made of copper or bronze 铜币
 He offered to do the job for a few coppers.
他说他来做这份工作，给他几个铜板就行。
3  [uncountableU]CC a reddish-brown colour 红棕色，紫铜色
 her copper hair
她那红棕色的头发
4. [countableC]SCP British EnglishBrE informal a police officer 警察
—coppery adjectiveadj
 coppery skin
古铜色的皮肤
Examples from the Corpus
copper• copper lipstick• The first copper light of morning was creeping up Great Head bluff and spilling over the harbor.• Small quantities of copper are often fatal to invertebrates.• Some countries are rich because they have oil or copper or iron.• These small copper alloy balances had an inverted T-shaped beam supported from its centre by a suspension arm.• Leak-Fix seals leaks in tanks made of steel, copper, lead, aluminium and glass fibre.• Adding the copper, which is another metal toxin, only hastened the death of the fish.• The nine-second fire was sparked by a breach of the synthetic insulation surrounding 10 hair-thin copper wires within the cord.• The devices wound with copper are usually replaced every two-to-five years, depending on which type you have.
From Longman Business Dictionary
coppercop·per /ˈkɒpəˈkɑːpər/ noun
1[uncountableU] a reddish-brown metal used, among other things, for making wire and CABLEs
On Friday, copper for March delivery ended at 98.9 cents a pound, up 1.9 cents.
The company is a major producer of copper products.
2coppers [plural] British EnglishBrE coins of low value made of copper or other dark-coloured metals
He counted out three pounds, all in coppers.
Origin copper
Old English coper, from Late Latin cuprum, from Latin (aes) Cyprium “metal of Cyprus, copper”
cop·per noun
Chinese
Syllable
Corpus
TOEFL BNC: 3656 COCA: 5053
copper

noun

ADJECTIVE | VERB + COPPER | COPPER + NOUN | PREPOSITION | PHRASES ADJECTIVE➤pure純銅▸➤molten熔化的銅▸➤beaten銅箔▸➤burnished擦得鋥亮的銅◇Her hair shone like burnished copper.她的頭髮像擦過的銅一樣亮。VERB + COPPER➤mine開採銅礦▸➤produce產銅➤contain含銅COPPER + NOUN➤mine銅礦▸➤miner採銅礦工▸➤mining, production, smelting採銅；銅產量；煉銅▸➤deposit, ore銅礦層；銅礦石➤alloy銅合金▸➤sulphate/sulfate硫酸銅▸➤coin銅幣➤pipe, tube銅管➤cable, wire銅纜；銅線➤plate, pot銅盤；銅壺➤colour/color古銅色PREPOSITION➤in copper (= using copper) 用銅◇She works mainly in copper.她主要用銅創作作品。PHRASES➤an alloy of copper and sth, an alloy of copper with sth銅和⋯的合金◇Brass is an alloy of copper and zinc.黃銅是銅和鋅的合金。
TOEFL BNC: 3656 COCA: 5053
TOEFL BNC: 3656 COCA: 5053
copper
Metals: aluminium, aluminum, barium...
Police officers: bobby, cadet, captain...
General words for money, cash and coins: banknote, bill, bread...
Words used to describe specific colours: alabaster, amber, amethyst...

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