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A sort of stone, found in the mines with the true alum rock, chiefly of silica and iron.

ic, igneous rock, composed essentially of pyroxene and a triclinic feldspar with magnetic iron. By many authors it is considered equivalent to a coarse-grained basalt.

A mass of iron or lead hung from the yardarm, in readiness to be dropped on the deck of an enemy's vessel.

h an entrance way into a house or apartment is closed and opened. At last he came unto an iron door That fast was locked. Spenser.

A bar of iron with an eye at each end, or a heavy link, for coupling a locomotive to a tender or car.

a) A dragnet for taking up oysters, etc., from their beds. (b) A dredging machine. (c) An iron frame, with a fine net attached, used in collecting animals living at the bottom of the sea.

A sheet iron radiator, often in the shape of a drum, for warming an apartment by means of heat received from a stovepipe, or a cylindrical receiver for steam, etc.

l of a blackish green color, commonly massive or in nodules. It is a hydrous phosphate of iron.

en for baking before an open fire or kitchen range; also, in the United States, a shallow iron kettle for baking, with a cover to hold burning coals. -- Dutch pink, chalk, or whiting dyed yellow, and used in distemper, and for paper staining. etc. Weale. -- Dutch rush (Bot.), a species of horsetail rush or Equisetum…

A concretionary nodule of clay ironstone, of the size of a walnut or larger, so called by the ancients, who believed that the eagle transported these stones to her nest to facilitate the laying of her eggs; aëtites.

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

A mass, usually of soft iron, but sometimes of some other magnetic metal, as nickel or cobalt, rendered temporarily magnetic by being placed within a coil of wire through which a current of electricity is passing. The metal is generally in the form of a bar, either straight, or bent into the shape of a horseshoe.…

; to fortify as with battlements. [Archaic] To embattail and to wall about thy cause With iron-worded proof. Tennyson.

To harden. [Obs.] It will embrawn and iron-crust his flesh. Nash.

grinding and polishing hard substances. Native emery is mixed with more or less magnetic iron. See the Note under Corundum. Emery board, cardboard pulp mixed with emery and molded into convenient. -- Emery cloth or paper, cloth or paper on which the powder of emery is spread and glued for scouring and polishing. --…

A flying off in small particles, as heated iron or fermenting liquors; a sparkling; scintillation. Sir T. Browne.

nty; sway; dominion. "The empire of the sea." Shak. Over hell extend His empire, and with iron scepter rule. Milton.

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

y means of wax with which the colors are combined, and which is afterwards fused with hot irons, thus fixing the colors. -- Encaustic tile (Fine Arts), an earthenware tile which has a decorative pattern and is not wholly of one color.

To circumscribe or go round so as to surround closely; to encircle; to inclose; to environ; as, a ring encompasses the finger; an army encompasses a city; a voyage encompassing the world. Shak. A question may be encompassed with difficulty. C. J. Smith. The love of all thy sons encompass thee. Tennyson.…