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e, furnished with cranes, capstans, and other machinery, used in careening ships, raising weights, drawing piles, etc., chiefly in the Mediterranean; a lighter. Pontoon bridge, a bridge formed with pontoons. -- Pontoon train, the carriages of the pontoons, and the materials they carry for making a pontoon bridge.…

A Russian weight, equal to forty Russian pounds or about thirty-six English pounds avoirdupois.

bonate, or silicate, in the minerals sylvite, kainite, orthoclase, muscovite, etc. Atomic weight 39.0. Symbol K (Kalium).

A certain specified weight; especially, a legal standard consisting of an established number of ounces.

o acquire by the of that time a velocity of one foot per second. It is about equal to the weight of half an ounce, and is 13,825 dynes.

A person or thing, so called with reference to a certain number of pounds in value, weight, capacity, etc.; as, a cannon carrying a twelve-pound ball is called a twelve pounder.

force producing motion or pressure; as, the power applied at one and of a lever to lift a weight at the other end.

sanction, a solemn ordinance or decree issued by the head or legislature of a state upon weighty matters; -- a term derived from the Byzantine empire. In European history, two decrees under this name are particularly celebrated. One of these, issued by Charles VII. of France, A. D. 1438, was the foundation of the libe…

stituents of didymium; - - so called from the green color of its salts. Symbol Ps. Atomic weight 143.6.

Heavy with important contents, significance, or issue; full of consequence or results; weighty; as, pregnant replies. " A pregnant argument." Prynne. " A pregnant brevity." E. Everett.

The quality or state of being preponderant; superiority or excess of weight, influence, or power, etc.; an outweighing. The mind should . . . reject or receive proportionably to the preponderancy of the greater grounds of probability. Locke. In a few weeks he had changed the relative position of all the states in Europ…

ating; outweighing; overbalancing; -- used literally and figuratively; as, a preponderant weight; of preponderant importance. -- Pre*pon"der*ant*ly, adv.

To outweigh; to overpower by weight; to exceed in weight; to overbalance. An inconsiderable weight, by distance from the center of the balance, will preponderate greater magnitudes. Glanvill.

To urge, or act upon, with force, as weight; to act upon by pushing or thrusting, in distinction from pulling; to crowd or compel by a gradual and continued exertion; to bear upon; to squeeze; to compress; as, we press the ground with the feet when we walk; we press the couch on which we repose; we press substances wit…

Weight or influence derived from past success; expectation of future achievements founded on those already accomplished; force or charm derived from acknowledged character or reputation. "The prestige of his name must go for something." Sir G. C. Lewis.

natural agency applied by man to the production of power. Especially: Muscular force; the weight and motion of fluids, as water and air; heat obtained by chemical combination, and applied to produce changes in the volume and pressure of steam, air, or other fluids; and electricity, obtained by chemical action, and appl…

The application of a lever to move any weighty body, as a cask, anchor, cannon, car, etc. See Prize, n., 5.

That which sustains an incumbent weight; that on which anything rests or leans for support; a support; a stay; as, a prop for a building. "Two props of virtue." Shak.

The combining weight or equivalent of an element. [Obs.]

g in one's favor in a comparison or a contest; an advantage; means of influencing; as, in weights the favorite had the pull. [Slang]