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Equilibrium

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e⋅qui⋅lib⋅ri⋅um

[ee-kwuh-lib-ree-uhm, ek-wuh-]
–noun, plural -ri⋅ums, -ri⋅a [-ree-uh] .
1. a state of rest or balance due to the equal action of opposing forces.
2. equal balance between any powers, influences, etc.; equality of effect.
3. mental or emotional balance; equanimity: The pressures of the situation caused her to lose her equilibrium.
4. Chemistry. the condition existing when a chemical reaction and its reverse reaction proceed at equal rates.

Origin:
1600–10; < L aequilībrium, equiv. to aequi- equi- + lībr(a) balance + -ium -ium


e⋅quil⋅i⋅bra⋅to⋅ry [i-kwil-uh-bruh-tawr-ee, -tohr-ee, ee-kwuh-lib-ruh-, ek-wuh-] , adjective


1. equipoise, steadiness, stability.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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e·qui·lib·ri·um   (ē'kwə-lĭb'rē-əm, ěk'wə-)   
n.   pl. e·qui·lib·ri·ums or e·qui·lib·ri·a (-rē-ə)
  1. A condition in which all acting influences are canceled by others, resulting in a stable, balanced, or unchanging system.

  2. Mental or emotional balance; poise.

  3. Physics The state of a body or physical system at rest or in unaccelerated motion in which the resultant of all forces acting on it is zero and the sum of all torques about any axis is zero.

  4. Chemistry The state of a chemical reaction in which its forward and reverse reactions occur at equal rates so that the concentration of the reactants and products does not change with time.


[Latin aequilībrium : aequi-, equi- + lībra, balance.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Financial Dictionary

Equilibrium

The state in which market supply and demand balance each other and, as a result, prices become stable.

Investopedia Commentary

The equilibrium price is the price at which the supply of goods matches demand.

Related Links

Economics Basics Tutorial

See also: Demand, Economics, Orderly Market, Supply

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Medical Dictionary

Main Entry: equi·lib·ri·um
Pronunciation: "E-kw&-'lib-rE-&m, "ek-w&-
Function: noun
Inflected Form: plural equi·lib·ri·ums or equi·lib·ria /-rE-&/
1 : a state of balance between opposing forces or actions that iseither static (as in a body acted on by forces whose resultant is zero) or dynamic (as in a reversible chemical reaction when the velocities in both directions are equal)
2 : astate of intellectual or emotional balance
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

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

  1. A condition in which all influences acting upon it are canceled by others, resulting in a stable, balanced, or unchanging system.

  2. The state of a chemical reaction in which its forward and reverse reactions occur at equal rates so that the concentration of the reactants and products does not change with time. Also called dynamic equilibrium.

  3. Mental or emotional balance.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
equilibrium   (ē'kwə-lĭb'rē-əm)  Pronunciation Key 
Plural equilibriums or equilibria
  1. Physics The state of a body or physical system that is at rest or in constant and unchanging motion. A system that is in equilibrium shows no tendency to alter over time. ◇ If a system is in static equilibrium, there are no net forces and no net torque in the system. ◇ If a system is in stable equilibrium, small disturbances to the system cause only a temporary change before it returns to its original state.

  2. Chemistry The state of a reversible chemical reaction in which its forward and reverse reactions occur at equal rates so that the concentration of the reactants and products remains the same.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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