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...

Phlogopite :: Phlogopite (n.) A kind of mica having generally a peculiar bronze-red or copperlike color and a pearly luster. It is a silicate of aluminia, with magnesia, potash, and some fluorine. It is characteristic of crystalline limestone or dolomite and serpentine. See Mica..

Alloy :: Alloy (v. t.) Any combination or compound of metals fused together; a mixture of metals; for example, brass, which is an alloy of copper and zinc. But when mercury is one of the metals, the compound is called an amalgam..

Pinchbeck :: Pinchbeck (n.) An alloy of copper and zinc, resembling gold; a yellow metal, composed of about three ounces of zinc to a pound of copper. It is much used as an imitation of gold in the manufacture of cheap jewelry..

Mill :: Mill (n.) A hardened steel roller having a design in relief, used for imprinting a reversed copy of the design in a softer metal, as copper..

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..

Cupriferous :: Cupriferous (a.) Containing copper; as, cupriferous silver..

Caledonite :: Caledonite (n.) A hydrous sulphate of copper and lead, found in some parts of Caledonia or Scotland..

Sheet :: Sheet (v. t.) A broad, thinly expanded portion of metal or other substance; as, a sheet of copper, of glass, or the like; a plate; a leaf..

Hematinon :: Hematinon (n.) A red consisting of silica, borax, and soda, fused with oxide of copper and iron, and used in enamels, mosaics, etc..

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

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..

Chalcocite :: Chalcocite (n.) Native copper sulphide, called also copper glance, and vitreous copper; a mineral of a black color and metallic luster..

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

Dioptase :: Dioptase (n.) A hydrous silicate of copper, occurring in emerald-green crystals..

Brood :: Brood (v. t.) Heavy waste in tin and copper ores.

Bush :: Bush (n.) A piece of copper, screwed into a gun, through which the venthole is bored..

Copper-fastened :: Copper-fastened (a.) Fastened with copper bolts, as the planks of ships, etc.; as, a copper-fastened ship..

Ziment-water :: Ziment-water (n.) A kind of water found in copper mines; water impregnated with copper.

Bournonite :: Bournonite (n.) A mineral of a steel-gray to black color and metallic luster, occurring crystallized, often in twin crystals shaped like cogwheels (wheel ore), also massive. It is a sulphide of antimony, lead, and copper..

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

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