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

Tough-pitch :: Tough-pitch (n.) The exact state or quality of texture and consistency of well reduced and refined copper.

Rouser :: Rouser (n.) A stirrer in a copper for boiling wort.

Copper :: Copper (n.) A coin made of copper; a penny, cent, or other minor coin of copper..

Wet :: Wet (superl.) Employing, or done by means of, water or some other liquid; as, the wet extraction of copper, in distinction from dry extraction in which dry heat or fusion is employed..

Pyrothonide :: Pyrothonide (n.) A kind of empyreumatic oil produced by the combustion of textures of hemp, linen, or cotton in a copper vessel, -- formerly used as a remedial agent..

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

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

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

Linarite :: Linarite (n.) A hydrous sulphate of lead and copper occurring in bright blue monoclinic crystals.

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

Vauquelinite :: Vauquelinite (n.) Chromate of copper and lead, of various shades of green..

Braze :: Braze (v. i.) To solder with hard solder, esp. with an alloy of copper and zinc; as, to braze the seams of a copper pipe..

Cupreous :: Cupreous (a.) Consisting of copper or resembling copper; coppery.

Babbitt Metal :: Babbitt metal () A soft white alloy of variable composition (as a nine parts of tin to one of copper, or of fifty parts of tin to five of antimony and one of copper) used in bearings to diminish friction..

Penny :: Penny (n.) An English coin, formerly of copper, now of bronze, the twelfth part of an English shilling in account value, and equal to four farthings, or about two cents; -- usually indicated by the abbreviation d. (the initial of denarius)..

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..

Vitriol :: Vitriol (n.) A sulphate of any one of certain metals, as copper, iron, zinc, cobalt. So called on account of the glassy appearance or luster..

Copperplate :: Copperplate (n.) An impression on paper taken from such a plate.

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