Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of copper is as below...

Venus :: Venus (n.) The metal copper; -- probably so designated from the ancient use of the metal in making mirrors, a mirror being still the astronomical symbol of the planet Venus..

Matte :: Matte (n.) A partly reduced copper sulphide, obtained by alternately roasting and melting copper ore in separating the metal from associated iron ores, and called coarse metal, fine metal, etc., according to the grade of fineness. On the exterior it is dark brown or black, but on a fresh surface is yellow or bronzy in color..

Liard :: Liard (n.) A French copper coin of one fourth the value of a sou.

Galvanograph :: Galvanograph (n.) A copperplate produced by the method of galvanography; also, a picture printed from such a plate..

Torbernite :: Torbernite (n.) A mineral occurring in emerald-green tabular crystals having a micaceous structure. It is a hydrous phosphate of uranium and copper. Called also copper uranite, and chalcolite..

Aeruginous :: Aeruginous (a.) Of the nature or color of verdigris, or the rust of copper..

Kingston Metal :: Kingston metal () An alloy of tin, copper, and mercury, sometimes used for the bearings and packings of machinery..

Bronze :: Bronze (a.) An alloy of copper and tin, to which small proportions of other metals, especially zinc, are sometimes added. It is hard and sonorous, and is used for statues, bells, cannon, etc., the proportions of the ingredients being varied to suit the particular purposes. The varieties containing the higher proportions of tin are brittle, as in bell metal and speculum metal..

Brass :: Brass (n.) An alloy (usually yellow) of copper and zinc, in variable proportion, but often containing two parts of copper to one part of zinc. It sometimes contains tin, and rarely other metals..

Frankfort Black :: Frankfort black () A black pigment used in copperplate printing, prepared by burning vine twigs, the lees of wine, etc..

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

Enargite :: Enargite (n.) An iron-black mineral of metallic luster, occurring in small orthorhombic crystals, also massive. It contains sulphur, arsenic, copper, and often silver..

Coppering :: Coppering (n.) The act of covering with copper.

Vodanium :: Vodanium (n.) A supposed element, afterward found to be a mixture of several metals, as copper, iron, lead, nickel, etc..

Copperworm :: Copperworm (n.) The teredo; -- so called because it injures the bottoms of vessels, where not protected by copper..

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

Caldron :: Caldron (n.) A large kettle or boiler of copper, brass, or iron. [Written also cauldron.].

Copper :: Copper (n.) A vessel, especially a large boiler, made of copper..

Neogen :: Neogen (n.) An alloy resembling silver, and consisting chiefly of copper, zinc, and nickel, with small proportions of tin, aluminium, and bismuth..

Atramentarious :: Atramentarious (a.) Like ink; suitable for making ink. Sulphate of iron (copperas, green vitriol) is called atramentarious, as being used in making ink..

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