English definition of Copper

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Definition of copper

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Copper (n.) A common metal of a reddish color, both ductile and malleable, and very tenacious. It is one of the best conductors of heat and electricity. Symbol Cu. Atomic weight 63.3. It is one of the most useful metals in itself, and also in its alloys, brass and bronze..

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Turquois :: Turquois (n.) A hydrous phosphate of alumina containing a little copper; calaite. It has a blue, or bluish green, color, and usually occurs in reniform masses with a botryoidal surface..

Kreutzer :: Kreutzer (n.) A small copper coin formerly used in South Germany; also, a small Austrian copper coin..

Cable :: Cable (n.) A rope of steel wire, or copper wire, usually covered with some protecting or insulating substance; as, the cable of a suspension bridge; a telegraphic cable..

Eliquation :: Eliquation (n.) The process of separating a fusible substance from one less fusible, by means of a degree of heat sufficient to melt the one and not the other, as an alloy of copper and lead; liquation..

Doop :: Doop (n.) A little copper cup in which a diamond is held while being cut.

Coppersmith :: Coppersmith (n.) One whose occupation is to manufacture copper utensils; a worker in copper.

Copper-faced :: Copper-faced (a.) Faced or covered with copper; as, copper-faced type..

Whitneyite :: Whitneyite (n.) an arsenide of copper from Lake Superior.

Eruginous :: Eruginous (a.) Partaking of the substance or nature of copper, or of the rust copper; resembling the trust of copper or verdigris; aeruginous..

Fulguration :: Fulguration (n.) The sudden brightening of a fused globule of gold or silver, when the last film of the oxide of lead or copper leaves its surface; -- also called blick..

Libethenite :: Libethenite (n.) A mineral of an olive-green color, commonly in orthorhombic crystals. It is a hydrous phosphate of copper..

Erinite :: Erinite (n.) A hydrous arseniate of copper, of an emerald-green color; -- so called from Erin, or Ireland, where it occurs..

Blacks :: Blacks (n. pl.) The name of a kind of in used in copperplate printing, prepared from the charred husks of the grape, and residue of the wine press..

Daguerreotype :: Daguerreotype (n.) An early variety of photograph, produced on a silver plate, or copper plate covered with silver, and rendered sensitive by the action of iodine, or iodine and bromine, on which, after exposure in the camera, the latent image is developed by the vapor of mercury..

Obolo :: Obolo (n.) A copper coin, used in the Ionian Islands, about one cent in value..

Eucairite :: Eucairite (n.) A metallic mineral, a selenide of copper and silver; -- so called by Berzelius on account of its being found soon after the discovery of the metal selenium..

Maravedi :: Maravedi (n.) A small copper coin of Spain, equal to three mils American money, less than a farthing sterling. Also, an ancient Spanish gold coin..

Verdigris :: Verdigris (n.) The green rust formed on copper.

Uranite :: Uranite (n.) A general term for the uranium phosphates, autunite, or lime uranite, and torbernite, or copper uranite..

Denier :: Denier (n.) A small copper coin of insignificant value.