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A mount permitting easy and quick elevation or depression and training of the gun, and fitting with a device for taking up the recoil.

ation of parts; of loose texture; not thick or dense; thin; as, a rare atmosphere at high elevations. Water is nineteen times lighter, and by consequence nineteen times rarer, than gold. Sir I. Newton.

A fine eruption or efflorescence on the body, with little or no elevation. Canker rash. See in the Vocabulary. -- Nettle rash. See Urticaria. -- Rose rash. See Roseola. -- Tooth rash. See Red-gum.

The elevations and surface undulations of a country. Guyot. Relief valve, a valve arranged for relieving pressure of steam, gas, or liquid; an escape valve.

rebound or skipping, as of a ball along the ground when a gun is fired at a low angle of elevation, or of a fiat stone thrown along the surface of water. Ricochet firing (Mil.), the firing of guns or howitzers, usually with small charges, at an elevation of only a few degrees, so as to cause the balls or shells to bou…

A range of hills or mountains, or the upper part of such a range; any extended elevation between valleys. "The frozen ridges of the Alps." Shak. Part rise crystal wall, or ridge direct. Milton.

Elevation or ascent of the voice; upward change of key; as, a rise of a tone or semitone.

e-colored efflorescence upon the skin, occurring in circumscribed patches of little or no elevation and often alternately fading and reviving; also, an acute specific disease which is characterized by an eruption of this character; -- called also rose rash. -- Ro*se"o*lous, a.

To shoot at rovers; hence, to shoot at an angle of elevation, not at point-blank (rovers usually being beyond the point-blank range). Fair Venusson that with thy cruel dart At that good knoght cunningly didst rove. Spenser.

e singing of the sanctus, at the conclusion of the ordinary of the Mass, and again at the elevation of the host. Called also Mass bell, sacring bell, saints' bell, sance- bell, sancte bell.

To apply sights to; to adjust the sights of; also, to give the proper elevation and direction to by means of a sight; as, to sight a rifle or a cannon.

can be transferred to a lower level, as from one vessel to another, over an intermediate elevation, by the action of the pressure of the atmosphere in forcing the liquid up the shorter branch of the pipe immersed in it, while the continued excess of weight of the liquid in the longer branch (when once filled) causes a…

A supply pipe of sufficient elevation to enable the water to flow into the boiler, notwithstanding the pressure of the steam. Knight.

Astonishing; wonderful; amazing; especially, astonishing in magnitude or elevation; as, a stupendous pile. "A stupendous sum." Macaulay. All are but parts of one stupendous whole. Pope. -- Stu*pen"dous*ly, adv. -- Stu*pen"dous*ness, n.

The act of raising on high; elevation. Sir T. More.

The act of heightening or improving; exaltation; elevation; purification.

The highest degree; the utmost elevation; the acme; as, the summit of human fame.

Elevation above the common degree. Holyday.

Increase in height; elevation; rise. Little River affords navigation during a swell to within three miles of the Miami. Jefferson.

ger of derailment of trains. -- Switch back (Railways), an arrangement of tracks whereby elevations otherwise insurmountable are passed. The track ascends by a series of zigzags, the engine running alternately forward and back, until the summit is reached. -- Switch board (Elec.), a collection of switches in one piec…