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[ee-kwuh-lib-ree-uh m, ek-wuh-] /ˌi kwəˈlɪb ri əm, ˌɛk wə-/

noun, plural equilibriums, equilibria
[ee-kwuh-lib-ree-uh, ek-wuh-] /ˌi kwəˈlɪb ri ə, ˌɛk wə-/ (Show IPA)
a state of rest or balance due to the equal action of opposing forces.
equal balance between any powers, influences, etc.; equality of effect.
mental or emotional balance; equanimity:
The pressures of the situation caused her to lose her equilibrium.
Chemistry. the condition existing when a chemical reaction and its reverse reaction proceed at equal rates.
noun (pl) -riums, -ria (-rɪə)
a stable condition in which forces cancel one another
a state or feeling of mental balance; composure
any unchanging condition or state of a body, system, etc, resulting from the balance or cancelling out of the influences or processes to which it is subjected See thermodynamic equilibrium
(physics) a state of rest or uniform motion in which there is no resultant force on a body
(chem) the condition existing when a chemical reaction and its reverse reaction take place at equal rates
(physics) the condition of a system that has its total energy distributed among its component parts in the statistically most probable manner
(physiol) a state of bodily balance, maintained primarily by special receptors in the inner ear
the economic condition in which there is neither excess demand nor excess supply in a market

c.1600, from Latin aequilibrium, from aequus “equal” (see equal) + libra “a balance, scale, plummet” (see Libra).

equilibrium e·qui·lib·ri·um (ē’kwə-lĭb’rē-əm, ěk’wə-)

Plural equilibriums or equilibria

In economics, a state of the economy in which for every commodity or service (including labor), total supply and demand are exactly equal. Equilibrium is never actually attained; it is approximated by movements of the market.

Note: Keynesian economics departed from conventional economic theory in demonstrating that economic equilibrium and full employment need not occur together. Therefore, as a system tends toward equilibrium, it might not eliminate unemployment.

A condition in which all influences acting cancel each other, so that a static or balanced situation results. In physics, equilibrium results from the cancellation of forces acting on an object. In chemistry, it occurs when chemical reactions are proceeding in such a way that the amount of each substance in a system remains the same. (See chemical equilibrium.)


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  • Equilibrium-price

    noun 1. the price at which the quantity of a product offered is equal to the quantity of the product in demand.

  • Equilibrium-valve

    noun 1. (in a reciprocating engine) a valve opening a passage from one end of a cylinder to the other to equalize pressure upon both faces of the piston.

  • Equimolecular

    [ee-kwuh-muh-lek-yuh-ler, ek-wuh-] /ˌi kwə məˈlɛk yə lər, ˈɛk wə-/ adjective, Physics, Chemistry. 1. containing equal numbers of molecules. /ˌiːkwɪməˈlɛkjʊlə/ adjective 1. (of substances, solutions, etc) containing equal numbers of molecules

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