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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Minargent :: Minargent (n.) An alloy consisting of copper, nickel, tungsten, and aluminium; -- used by jewelers..

Copperhead :: Copperhead (n.) A poisonous American serpent (Ancistrodon conotortrix), closely allied to the rattlesnake, but without rattles; -- called also copper-belly, and red viper..

Phosphor-bronze :: Phosphor-bronze (n.) A variety of bronze possessing great hardness, elasticity, and toughness, obtained by melting copper with tin phosphide. It contains one or two per cent of phosphorus and from five to fifteen per cent of tin..

Copperplate :: Copperplate (n.) A plate of polished copper on which a design or writing is engraved.

Centesimo :: Centesimo (n.) A copper coin of Italy and Spain equivalent to a centime.

Sheathing :: Sheathing (n.) The casing or covering of a ship's bottom and sides; the materials for such covering; as, copper sheathing..

Galvanography :: Galvanography (n.) A method of producing by means of electrotyping process (without etching) copperplates which can be printed from in the same manner as engraved plates.

Coppering :: Coppering (n.) An envelope or covering of copper.

Triens :: Triens (n.) A Roman copper coin, equal to one third of the as. See 3d As, 2..

Packfong :: Packfong (n.) A Chinese alloy of nickel, zinc, and copper, resembling German silver..

Tough-pitch :: Tough-pitch (n.) Copper so reduced; -- called also tough-cake.

Pewter :: Pewter (n.) A hard, tough, but easily fusible, alloy, originally consisting of tin with a little lead, but afterwards modified by the addition of copper, antimony, or bismuth..

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..

Ore :: Ore (n.) The native form of a metal, whether free and uncombined, as gold, copper, etc., or combined, as iron, lead, etc. Usually the ores contain the metals combined with oxygen, sulphur, arsenic, etc. (called mineralizers)..

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..

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

Norwegium :: Norwegium (n.) A rare metallic element, of doubtful identification, said to occur in the copper-nickel of Norway..

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..

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

Tula Metal :: Tula metal () An alloy of silver, copper, and lead made at Tula in Russia..