copper

名词 copper:

1. a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
   同义词：Cu, atomic number 29
2. a copper penny
3. uncomplimentary terms for a policeman
   同义词：bull, cop, fuzz, pig
4. a reddish-brown color resembling the color of polished copper
   同义词：copper color
5. any of various small butterflies of the family Lycaenidae having coppery wings

动词 copper:

1. coat with a layer of copper

1. Copper conducts electricity better than iron does.
   铜的导电性比铁强。
2. Copper and gold are both metals.
   铜和金都是金属。
3. Copper has less resistance than lead.
   铜的电阻比铅的小。
4. What color is copper sulfate solution?
   硫酸铜溶液是什么颜色？
5. Ornamental copper pans hung on the wall.
   墙上挂着装饰性的铜盘。
6. Brass is formed by the fusion of copper and zinc.
   黄铜是由铜和锌熔合制成的。
7. Brass is an alloy of copper and zinc.
   黄铜是铜和锌的合金。
8. The chemical symbol for copper is "Cu".
   铜的化学符号是Cu。

copper

n.（名词）
Symbol Cu A ductile, malleable, reddish-brown metallic element that is an excellent conductor of heat and electricity and is widely used for electrical wiring, water piping, and corrosion-resistant parts, either pure or in alloys such as brass and bronze. Atomic number 29; atomic weight '3.54; melting point ,083=C; boiling point 2,595=C; specific gravity 8.9'; valence , 2.See table at element
符号 Cu 铜：一种有韧性、可延展的红棕色金属元素，是热和电的极好导体，广泛用于电线、水管及防腐蚀零件中，其形式可以是纯铜也可以是黄铜或青铜合金。原子序数为29；原子量为'3.54；熔点,083=C；沸点2,595=C；比重8.9'；原子价为,2参见 element
A coin, usually of small denomination, made of copper or a copper alloy.
铜币：用铜或铜的合金制成的硬币，通常为小面值
Chiefly British A large cooking pot made of copper or often of iron.
【多用于英国】 金属锅：用铜或铁铸成的大煮锅
Any of various small butterflies of the subfamily Lycaeninae, having predominantly copper-colored wings.
铜色（小）灰蝶：一种灰蝶亚科的小蝴蝶，翅膀主要为铜色
Color A reddish brown.
【色彩】 紫铜色：偏红的褐色
v.tr.（及物动词）
cop.pered,cop.per.ing,cop.pers
To coat or finish with a layer of copper.
镀铜于：给…包铜或镀铜
Slang To bet against, as in faro.
【俚语】 下赌注于：对…下赌注，如在法罗牌中

来源：
Middle English coper
中古英语 coper
from Old English
源自 古英语
from Late Latin cuprum
源自 后期拉丁语 cuprum
from Latin Cyprium (aes) [Cyprian (metal)]
源自 拉丁语 Cyprium (aes) [塞浦路斯的（金属）]
from Cyprius [of Cyprus]
源自 Cyprius [塞浦路斯的]
from Greek Kuprios
源自 希腊语 Kuprios
from Kupros [Cyprus]
源自 Kupros [塞浦路斯]

【引伸】
cop.pery
adj.（形容词）

---------------另--------------
copper
copper 2

n.Slang （名词）【俚语】
A police officer.
警察

来源：
From cop
源自 cop