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A metallic substance compounded of gold and silver; an alloy. [Obs.] Wyclif.

Negative; nonmetallic; acid; -- opposed to positive, metallic, or basic.

Hence: Positive; metallic; basic; -- distinguished from negative, nonmetallic, or acid.

A style of engraving in relief by means of voltaic electricity. A picture is drawn on a metallic plate with some material which resists the fluids of a battery; so that, in electro-typing, the parts not covered by the varnish, etc., receive a deposition of metal, and produce the required copy in intaglio. A cast of thi…

or the like, the colors being afterwards fixed by fire. -- Enamel paper, paper glazed a metallic coating.

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

A rare metallic element associated with several other rare elements in the mineral gadolinite from Ytterby in Sweden. Symbol Er. Atomic weight 165.9. Its salts are rose-colored and give characteristic spectra. Its sesquioxide is called erbia.

A metallic mineral, a selenide of copper and silver; -- so called by Berzelius on account of its being found soon after the discovery of the metal selenium.

A metallic element of the rare-earth group, discovered spectroscopically by Demarcay in 1896. Symbol, Eu; at. wt., 152.0.

A brownish black mineral with a metallic luster, found in Norway. It contains niobium, titanium, yttrium, and uranium, with some other metals.

A metal ring or grommet, or short metallic tube, the ends of which can be bent outward and over to fasten it in place; -- used to line an eyelet hole. Eyelet hole, a hole made for an eyelet. -- Eyelet punch, a machine for punching eyelet holes and fastening eyelets, as in paper or cloth. -- Eyelet ring. See Eyelet, 2…

A stratum in crystalline rock, containing metallic sulphides. Raymond.

ubstances, as sulphur, niter, lampblack, etc., the flames of which are colored by various metallic salts, as those of antimony, strontium, barium, etc. -- Fire alarm (a) A signal given on the breaking out of a fire. (b) An apparatus for giving such an alarm. -- Fire annihilator, a machine, device, or preparation to b…

by the combustion of materials that burn in some peculiar manner, as gunpowder, sulphur, metallic filings, and various salts. The most common feature of fireworks is a paper or pasteboard tube filled with the combustible material. A number of these tubes or cases are often combined so as to make, when kindled, a great…

atilization; to cease to flow or be fluid; to congeal; to become hard and malleable, as a metallic substance. Bacon. To fix on, to settle the opinion or resolution about; to determine regarding; as, the contracting parties have fixed on certain leading points.

e punched. (b) A mill in which grains of metal are flatted by steel rolls, and reduced to metallic dust, used for purposes of ornamentation.

The hollow, metallic ball of a self-acting faucet, which floats upon the water in a cistern or boiler.

A non-metallic, gaseous element, strongly acid or negative, or associated with chlorine, bromine, and iodine, in the halogen group of which it is the first member. It always occurs combined, is very active chemically, and possesses such an avidity for most elements, and silicon especially, that it can neither be prepar…

A metallic stand with four feet, for keeping anything warm before a fire.

e genus Hedysarum (H. coronarium); -- called also garland honeysuckle. -- French horn, a metallic wind instrument, consisting of a long tube twisted into circular folds and gradually expanding from the mouthpiece to the end at which the sound issues; -- called in France cor de chasse. -- French leave, an informal, ha…