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Pertaining to, contained in, or composed of, alluvium; relating to the deposits made by flowing water; washed away from one place and deposited in another; as, alluvial soil, mud, accumulations, deposits.

Deposits of earth, sand, gravel, and other transported matter, made by rivers, floods, or other causes, upon land not permanently submerged beneath the waters of lakes or seas. Lyell.

other as a helper; an auxiliary. Science, instead of being the enemy of religion, becomes its ally. Buckle.

degrees, formerly used at sea to take observations of the sun's amplitude at the time of its rising or setting, to find the variation of the compass.

Of or by itself; by themselves; without any thing more or any one else; without a sharer; only. Man shall not live by bread alone. Luke iv. 4. The citizens alone should be at the expense. Franklin.

A reddish glow seen near sunset or sunrise on the summits of mountains; specif., a reillumination sometimes observed after the summits have passed into shadow, supposed to be due to a curving downward (refraction) of the light rays from the west resulting from the cooling of the air.

mouthpiece and a bell, used by the Swiss to sound the ranz des vaches and other melodies. Its notes are open harmonics of the tube.

In the proper position of an altar, that is, at the east of a church with its ends towards the north and south. Shipley.

A current which periodically changes or reverses its direction of flow.

In the manner of alternatives, or that admits the choice of one out of two things.

Space extended upward; height; the perpendicular elevation of an object above its foundation, above the ground, or above a given level, or of one object above another; as, the altitude of a mountain, or of a bird above the top of a tree.

llic base of alumina. This metal is white, but with a bluish tinge, and is remarkable for its resistance to oxidation, and for its lightness, pertaining a specific gravity of about 2.6. Atomic weight 27.08. Symbol Al. Aluminium bronze or gold, a pale gold- colored alloy of aluminium and copper, used for journal bearing…

ows on old trees; German tinder; punk. It has been employed as a styptic by surgeons, but its common use is as tinder, for which purpose it is prepared by soaking it in a strong solution of niter. Ure.

Of or pertaining to the river Amazon in South America, or to its valley.

A valuable East Indian fiber plant (Hibiscus cannabinus), or its fiber, which is used throughout India for making ropes, cordage, and a coarse canvas and sackcloth; --called also brown Indian hemp.

estines of the sperm whale (Physeter macrocephalus), which is believed to be in all cases its true origin. In color it is white, ash-gray, yellow, or black, and often variegated like marble. The floating masses are sometimes from sixty to two hundred and twenty-five pounds in weight. It is wholly volatilized as a white…

idexas, ambidexterity of argumentation. Sterne. Ignorant I was of the human frame, and of its latent powers, as regarded speed, force, and ambidexterity. De Quincey.

ubtfulness or uncertainty, particularly as to the signification of language, arising from its admitting of more than one meaning; an equivocal word or expression. No shadow of ambiguity can rest upon the course to be pursued. I. Taylor. The words are of single signification, without any ambiguity. South.…

To go at the easy gait called an amble; -- applied to the horse or to its rider.

A field hospital, so organized as to follow an army in its movements, and intended to succor the wounded as soon as possible. Often used adjectively; as, an ambulance wagon; ambulance stretcher; ambulance corps.