[ee-kwuh-lib-ree-uh m, ek-wuh-]
- 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.
Origin of equilibrium
SynonymsSee more synonyms on Thesaurus.com
1. equipoise, steadiness, stability.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for equilibrium
But how many of us, thus sunk in despair, have not been vaulted back to equilibrium by another look at Groundhog Day?Harold Ramis’s ‘Groundhog Day’ Is About as Perfect as a Movie Gets
February 25, 2014
Since 1989, this arrangement has provided a workable degree of stability, but one based on an equilibrium of unstable elements.
Lebanese politics for more than a decade have been characterized by an equilibrium of unstable elements.
But by 2009, Aaron seemed to her to be regaining his equilibrium.Aaron Hernandez’s Terrifying Past
July 22, 2013
The key thing here is that the use of handguns in gang conflicts is at least in part an equilibrium problem.Another Example of Bullet Control
December 17, 2012
It simply must be done to preserve the equilibrium and avoid a spill.Flying Machines
W.J. Jackman and Thos. H. Russell
She was not going to have the equilibrium of her party disturbed, and that was all about it.Quaint Courtships
The equilibrium which had shown a tendency to be established in her, was upset.
His equilibrium was upset, he again trembled with violent fever, as formerly.
We have seen the worst of the English sparrow; he has now found his equilibrium.The Meaning of Evolution
Samuel Christian Schmucker
- 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 subjectedSee 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
C17: from Latin aequilībrium, from aequi- equi- + lībra pound, balance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for equilibrium
Online Etymology Dictionary, © 2010 Douglas Harper
- A condition in which all influences acting upon it are canceled by others, resulting in a stable, balanced, or unchanging system.
- 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.dynamic equilibrium
- Mental or emotional balance.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- 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.
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.