[ ee-kwuh-lib-ree-uhm, ek-wuh- ]
/ 藢i kw蓹藞l瑟b ri 蓹m, 藢蓻k w蓹- /
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noun, plural e路qui路lib路ri路ums, e路qui路lib路ri路a [ee-kwuh-lib-ree-uh, ek-wuh-]. /藢i kw蓹藞l瑟b ri 蓹, 藢蓻k w蓹-/.
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.
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Origin of equilibrium

1600鈥10; <Latin aequil墨brium, equivalent to aequi-equi- + l墨br(a) balance + -ium-ium

OTHER WORDS FROM equilibrium

e路quil路i路bra路to路ry [ih-kwil-uh-bruh-tawr-ee, -tohr-ee, ee-kwuh-lib-ruh-, ek-wuh-], /瑟藞kw瑟l 蓹 br蓹藢t蓴r i, -藢to蕣r i, 藢i kw蓹藞l瑟b r蓹-, 藢蓻k w蓹-/, adjectivenon路e路qui路lib路ri路um, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, 漏 Random House, Inc. 2023

How to use equilibrium in a sentence

British Dictionary definitions for equilibrium

/ (藢i藧kw瑟藞l瑟br瑟蓹m) /

noun plural -riums or -ria (-r瑟蓹)

Word Origin for equilibrium

C17: from Latin aequil墨brium, from aequi- equi- + l墨bra pound, balance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition 漏 William Collins Sons & Co. Ltd. 1979, 1986 漏 HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for equilibrium

[ 膿鈥瞜w蓹-l沫br膿-蓹m ]

Plural equilibriums equilibria
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.鈾 If a system is in static equilibrium, there are no net forces and no net torque in the system.鈾 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庐 Science Dictionary Copyright 漏 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for equilibrium (1 of 2)


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.

notes for equilibrium

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.

Cultural definitions for equilibrium (2 of 2)


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.)

The New Dictionary of Cultural Literacy, Third Edition Copyright 漏 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.