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rom salts of irron, and used as a polishing powder. Crocus of Venus (Old Chem.), oxide of copper.

e. (a) (Mach.) A shaft, windlass, or roller, worked by levers at opposite ends, as in the copperplate printing press. (b) A driving axle. with cranks set at an angle of 90º with each other. -- Cross bedding (Geol.), oblique lamination of horizontal beds, -- Cross bill. See in the Vocabulary. -- Cross bitt. Same as Cr…

Consisting of copper or resembling copper; coppery.

Of, pertaining to, or derived from, copper; containing copper; -- said of those compounds of copper in which this element is present in its lowest proportion.

Containing copper; as, cupriferous silver.

The red oxide of copper; red copper; an important ore of copper, occurring massive and in isometric crystals.

Of, pertaining to, or derived from, copper; containing copper; -- said of those compounds of copper in which this element is present in its highest proportion.

Copper.

Native sulphate of copper. Cf. Blue vitriol, under Blue.

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.

A small copper coin of insignificant value. My dukedom to a beggarly denier. Shak.

A hydrous silicate of copper, occurring in emerald-green crystals.

sunfish (Lepomis pallidus), common in the United States; -- called also blue sunfish, and copper-nosed bream.

A massive mineral of tin-white or steel-gray color, an arsenide of copper.

A little copper cup in which a diamond is held while being cut.

A roll of cloth for wiping off the face of a copperplate, leaving the ink in the engraved lines.

, on, as on roasting meat. Beau. & Fl. Dredging box. (a) Same as 2d Dredger. (b) (Gun.) A copper box with a perforated lid; -- used for sprinkling meal powder over shell fuses. Farrow.

per part remains open. -- Dutch foil, Dutch leaf, or Dutch gold, a kind of brass rich in copper, rolled or beaten into thin sheets, used in Holland to ornament toys and paper; -- called also Dutch mineral, Dutch metal, brass foil, and bronze leaf. -- Dutch liquid (Chem.), a thin, colorless, volatile liquid, C2H4Cl2,…

A mineral of a green color and pearly luster; a hydrous phosphate of copper.

The art or process of gilding copper, iron, etc., by means of voltaic electricity.