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llition. This is different for different liquids, and for the same liquid under different pressures. For water, at the level of the sea, barometer 30 in., it is 212 º Fahrenheit; for alcohol, 172.96º; for ether, 94.8º; for mercury, about 675º. The boiling point of water is lowered one degree Fahrenheit for about 550 fe…

A pad, quilt, or anything used to hinder pressure, support any part of the body, or make a bandage sit easy upon a wounded part; a compress. This arm shall be a bolster for thy head. Gay.

A substance composed of ground bone, mineral matters, etc., hardened by pressure, and used for making billiard balls, boxes, etc.

ce in an alternating-current circuit; -- so called because used to "boost", or raise, the pressure in the circuit.

The process, fact, or pressure of boycotting; a combining to withhold or prevent dealing or social intercourse with a tradesman, employer, etc.; social and business interdiction for the purpose of coercion.

A piece of material used to transmit, or change the direction of, weight or pressure; any one of the pieces, in a frame or truss, which divide the structure into triangular parts. It may act as a tie, or as a strut, and serves to prevent distortion of the structure, and transverse strains in its members. A boiler brace…

ism for retarding or stopping motion by friction, as of a carriage or railway car, by the pressure of rubbers against the wheels, or of clogs or ratchets against the track or roadway, or of a pivoted lever against a wheel or drum in a machine.

To open spontaneously, or by pressure from within, as a bubble, a tumor, a seed vessel, a bag. Else the bottle break, and the wine runneth out. Math. ix. 17.

A swelling, protuberant part; a bending outward, esp. when caused by pressure; as, a bulge in a wall.

A structure of wood or stone, to resist the pressure of earth or water; a partition wall or structure, as in a mine; the limiting wall along a water front. Bulked line, a line beyond which a wharf must not project; -- usually, the harbor line.

The upward pressure exerted upon a floating body by a fluid, which is equal to the weight of the body; hence, also, the weight of a floating body, as measured by the volume of fluid displaced. Such are buoyancies or displacements of the different classes of her majesty's ships. Eng. Cyc.

To fly apart or in pieces; of break open; to yield to force or pressure, especially to a sudden and violent exertion of force, or to pressure from within; to explode; as, the boiler had burst; the buds will burst in spring. From the egg that soon Bursting with kindly rupture, forth disclosed Their callow young. Milton.…

n, closed at the top but open at the bottom, and resting upon the ground under water. The pressure of air forced into the caisson keeps the water out. Men and materials are admitted to the interior through an air lock. See Lock.

A disease frequently induced by remaining for some time in an atmosphere of high pressure, as in caissons, diving bells, etc. It is characterized by neuralgic pains and paralytic symptoms. It is variously explained, most probably as due to congestion of internal organs with subsequent stasis of the blood.…

f giving cloth, paper, etc., a smooth, even, and glossy or glazed surface, by cold or hot pressure, or for watering them and giving them a wavy appearance. It consists of two or more cylinders revolving nearly in contact, with the necessary apparatus for moving and regulating.

; a hardening and thickening of the skin or bark of a part, eps. as a result of continued pressure or friction.

and when breathed destroys life. It can be reduced to a liquid and solid form by intense pressure. It is produced in the fermentation of liquors, and by the combustion and decomposition of organic substances, or other substances containing carbon. It is formed in the explosion of fire damp in mines, and is hance calle…

he lamination not necessarily parallel to the plane of deposition; -- usually produced by pressure. Basal cleavage, cleavage parallel to the base of a crystal, or to the plane of the lateral axes. -- Cell cleavage (Biol.), multiplication of cells by fission. See Segmentation. -- Cubuc cleavage, cleavage parallel to t…

Pressure; that which presses. [Obs.] Ray.

To fail suddenly and completely, like something hollow when subject to too much pressure; to undergo a collapse; as, Maximilian's government collapsed soon after the French army left Mexico; many financial projects collapse after attaining some success and importance.