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The deposit formed on the interior of boilers and other vessels by hard water.

use, for baking pottery, etc.; as, an iron furnace; a hot-air furnace; a glass furnace; a boiler furnace, etc.

A deposit from water, as on the inside of a boiler; also, the operation of cleaning away this deposit.

A superficial, inflammatory tumor, suppurating with a central core; a boil.

rts of bismuth, three of lead, and two of tin, which melts at a temperature below that of boiling water. Ure. -- Fusible plug (Steam Boiler), a piece of easily fusible alloy, placed in one of the sheets and intended to melt and blow off the steam in case of low water.

A dish of veal, chickens, or other white meat, freed from bones, tied up, boiled, and served cold. Smart.

To concentrate; to come to a head, as a sore, and generate pus; as, a boil has gathered.

A tumor or boil suppurated or maturated; an abscess.

a stop cock used as a try cock for ascertaining the height of the water level in a steam boiler. -- Gauge concussion (Railroads), the jar caused by a car-wheel flange striking the edge of the rail. -- Gauge glass, a glass tube for a water gauge. -- Gauge lathe, an automatic lathe for turning a round object having a…

Geal.] (Chem.) Animal jelly; glutinous material obtained from animal tissues by prolonged boiling. Specifically (Physiol. Chem.), a nitrogeneous colloid, not existing as such in the animal body, but formed by the hydrating action of boiling water on the collagen of various kinds of connective tissue (as tendons, bones,…

Yielding gelatin on boiling with water; capable of gelatination.

or gas is formed from a liquid or solid by means of heat or chemical process, as a steam boiler, gas retort, or vessel for generating carbonic acid gas, etc.

A boiling spring which throws forth at frequent intervals jets of water, mud, etc., driven up by the expansive power of steam.

Butter clarified by boiling, and thus converted into a kind of oil. [India] Malcom.

Broth reduced by boiling to a gelatinous paste, and spread thinly over braised dishes.

A hard brittle brownish gelatin, obtained by boiling to a jelly the skins, hoofs, etc., of animals. When gently heated with water, it becomes viscid and tenaceous, and is used as a cement for uniting substances. The name is also given to other adhesive or viscous substances. Bee glue. See under Bee. -- Fish glue, a st…

A crystalline, nitrogenous substance, with a sweet taste, formed from hippuric acid by boiling with hydrochloric acid, and present in bile united with cholic acid. It is also formed from gelatin by decomposition with acids. Chemically, it is amido-acetic acid. Called also glycin, and glycocin.

her organs and tissues, particularly in the embryo. It is quickly changed into sugar when boiled with dilute sulphuric or hydrochloric acid, and also by the action of amylolytic ferments.

nlike cellulose, it is colored blue by iodine, and is converted into dextrin and sugar by boiling acids and amylolytic ferments.

d, or kind of basket, of iron bars, for holding fuel while burning. Grate surface (Steam, Boiler) the area of the surface of the grate upon which the fuel lies in the furnace.