Search the Dictionary

A mass of iron on which the operation of smelting has failed of its intended effect; -- so called from Shadrach, one of the three Hebrews who came forth unharmed from the fiery furnace of Nebuchadnezzar. (See Dan. iii. 26, 27.)

A house or place for smelting.

when present in considerable quantity it materially increases the hardness, or raises the melting point, of the fat, as in mutton tallow. Chemically, it is a compound of glyceryl with three molecules of stearic acid, and hence is technically called tristearin, or glyceryl tristearate.

densation; specifically, to evaporate or volatilize from the solid state without apparent melting; -- said of those substances, like arsenic, benzoic acid, etc., which do not exhibit a liquid form on heating, except under increased pressure.

y the strength he has given to his figures, and by sweetening his lights and shadows, and melting them into each other. Dryden.

fat of animals of the sheep and ox kinds, separated from membranous and fibrous matter by melting.

A kind of clay for making melting pots. Percy Smith.

To pour, as steel, from a melting pot; to fill, as a mold, with molten metal.

The melting of ice, snow, or other congealed matter; the resolution of ice, or the like, into the state of a fluid; liquefaction by heat of anything congealed by frost; also, a warmth of weather sufficient to melt that which is congealed. Dryden.

Liquefying by heat after having been frozen; thawing; melting.

l, without lamination, formed in a glacier valley by means of the waters derived from the melting glaciers; -- sometimes applied to alluvium of an upper river terrace, when not laminated, and appearing as if formed in the same manner.

ich is led along the vein when reached by the tunnel. Tunnel head (Metal.), the top of a smelting furnace where the materials are put in. -- Tunnel kiln, a limekiln in which coal is burned, as distinguished from a flame kiln, in which wood or peat is used. -- Tunnel net, a net with a wide mouth at one end and narrow…

A yellow or brown amorphous substance obtained as a sublimation product in the flues of smelting furnaces of zinc, and consisting of a crude zinc oxide.

ust in an air tight receptacle to a temperature of about 600º F., which is 188º below the melting point of zinc, or by exposing the articles to vapor from molten zinc in a separate receptacle, using hydrogen or other reducing gas to prevent oxidation.

A valuable kind of pear, of an obovate shape and with melting flesh of delicious flavor; -- more properly called White Doyenné. [Written also virgaloo, vergalieu, vergaloo, etc.]

etc. (b) (Metal.) A fine grade of copper sulphide obtained at a certain stage in copper smelting. -- White miller. (Zoöl.) (a) The common clothes moth. (b) A common American bombycid moth (Spilosoma Virginica) which is pure white with a few small black spots; -- called also ermine moth, and virgin moth. See Woolly be…

an be condensed to a liquid boiling at -109º C., and to a solid which volatilizes without melting. Symbol Xe or X; atomic weight 130.2.

ihil album, etc. The impure oxide produced by burning the metal, roasting its ores, or in melting brass, is called also pompholyx, and tutty. -- Zinc spinel (Min.), a mineral, related to spinel, consisting essentially of the oxides of zinc and aluminium; gahnite. -- Zinc vitriol (Chem.), zinc sulphate. See White vitr…