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balance in respect to an object, so that it remains firm; equipoise; as, to preserve the equilibrium of the body. Health consists in the equilibrium between those two powers. Arbuthnot.

The science of equilibrium and motion of air or an aëriform fluid, including aërodynamics and aërostatics.

The science that treats of the equilibrium of elastic fluids, or that of bodies sustained in them. Hence it includes aëronautics.

The extent of a movement measured from the starting point or position of equilibrium; -- applied especially to vibratory movements.

it is condensed within the cylinder. Tomlinson. -- Atmospheric line (Steam Engin.), the equilibrium line of an indicator card. Steam is expanded "down to the atmosphere" when its pressure is equal to that of the atmosphere. (See Indicator card.) -- Atmospheric pressure, the pressure exerted by the atmosphere, not mer…

The state of being in equipoise; equilibrium; even adjustment; steadiness. And hung a bottle on each side To make his balance true. Cowper. The order and balance of the country were destroyed. Buckle. English workmen completely lose their balance. J. S. Mill.

A power in nature, a manifestation of energy, exhibiting itself when in disturbed equilibrium or in activity by a circuit movement, the fact of direction in which involves polarity, or opposition of properties in opposite directions; also, by attraction for many substances, by a law involving attraction between surface…

A making equal; equal division; equality; equilibrium. Again the golden day resumed its right, And ruled in just equation with the night. Rowe.

Equality of weight or force; hence, equilibrium; a state in which the two ends or sides of a thing are balanced, and hence equal; state of being equally balanced; -- said of moral, political, or social interests or forces. The means of preserving the equipoise and the tranquillity of the commonwealth. Burke. Our little…

Laws relating to the equilibrium of the blood in the blood vessels.

That branch of physics which treats of the mechanics of liquids, or of their laws of equilibrium and of motion.

or relating to hydrostatics; pertaining to, or in accordance with, the principles of the equilibrium of fluids. The first discovery made in hydrostatics since the time of Archimedes is due to Stevinus. Hallam. Hydrostatic balance, a balance for weighing substances in water, for the purpose of ascertaining their specif…

The branch of science which relates to the pressure and equilibrium of nonelastic fluids, as water, mercury, etc.; the principles of statics applied to water and other liquids.

Absence of interest in, or influence from, anything; unconcernedness; equilibrium; indifferentism; indifference. Gladstone. To give ourselves to a detestable indifferency or neutrality in this cause. Fuller. Moral liberty . . . does not, after all, consist in a power of indifferency, or in a power of choosing without r…

general equilibrium in the earth's crust, supposed to be maintained by the yielding or flow of rock material beneath the surface under gravitative stress. By the theory of isostasy each unit column of the earth, from surface to center, has approximately the same weight, and the continents stand higher than the ocean be…

Subjected to equal pressure from every side; being in hydrostatic equilibrium, as a body submerged in a liquid at rest; pertaining to, or characterized by, isostasy.

To vibrate as a balance does before resting in equilibrium; hence, to be poised. Their parts all liberate on too nice a beam. Clifton.

d displaced by a floating body which is tipped through a small angle from its position of equilibrium, and the inclined line which was vertical through the center of gravity of the body when in equilibrium.

stretched nor compressed, or where the longitudinal stress is zero. See Axis. -- Neutral equilibrium (Mech.), the kind of equilibrium of a body so placed that when moved slighty it neither tends to return to its former position not depart more widely from it, as a perfect sphere or cylinder on a horizontal plane. --…

To cause to lose balance or equilibrium.