equilibrium


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Related to equilibrium: Equilibrium of forces

e·qui·lib·ri·um

 (ē′kwə-lĭb′rē-əm, ĕk′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.
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
a. 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.
b. The state of a system in which more than one phase exists and exchange between phases occurs at equal rates so that there is no net change in the composition of the system.

[Latin aequilībrium : aequi-, equi- + lībra, balance.]

equilibrium

(ˌiːkwɪˈlɪbrɪəm)
n, pl -riums or -ria (-rɪə)
1. a stable condition in which forces cancel one another
2. a state or feeling of mental balance; composure
3. (General Physics) 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
4. (General Physics) physics a state of rest or uniform motion in which there is no resultant force on a body
5. (Chemistry) chem the condition existing when a chemical reaction and its reverse reaction take place at equal rates
6. (General Physics) physics the condition of a system that has its total energy distributed among its component parts in the statistically most probable manner
7. (Physiology) physiol a state of bodily balance, maintained primarily by special receptors in the inner ear
8. (Economics) 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]

e•qui•lib•ri•um

(ˌi kwəˈlɪb ri əm, ˌɛk wə-)

n., pl. -ri•ums, -ri•a (-ri ə)
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.
4. a state or sense of steadiness and proper orientation of the body.
5. the condition existing when a chemical reaction and its reverse reaction proceed at equal rates.
[1600–10; < Latin aequilībrium=aequi- equi- + lībr(a) balance]
e•quil′i•bra•to`ry (ɪˈkwɪl ə brəˌtɔr i, -ˌtoʊr i) adj.

e·qui·lib·ri·um

(ē′kwə-lĭb′rē-əm)
1. Physics The state of a body or physical system that is at rest or in constant and unchanging motion. The sum of all forces acting on a body that is in equilibrium is zero (because opposing forces balance each other). A system that is in equilibrium shows no tendency to alter over time.
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.

equilibrium

The state of a reversible chemical reaction at which the forward and backward reactions take place at the same rate
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.equilibrium - a stable situation in which forces cancel one another
situation, state of affairs - the general state of things; the combination of circumstances at a given time; "the present international situation is dangerous"; "wondered how such a state of affairs had come about"; "eternal truths will be neither true nor eternal unless they have fresh meaning for every new social situation"- Franklin D.Roosevelt
balance - a state of equilibrium
balance of power - an equilibrium of power between nations
dynamic balance - (aeronautics) the state of equilibrium in which centrifugal forces due to a rotating mass (e.g., a propeller) do not produce force in the shaft and so vibration is reduced
homeostasis - (physiology) metabolic equilibrium actively maintained by several complex biological mechanisms that operate via the autonomic nervous system to offset disrupting changes
isostasy - (geology) a general equilibrium of the forces tending to elevate or depress the earth's crust
Nash equilibrium - (game theory) a stable state of a system that involves several interacting participants in which no participant can gain by a change of strategy as long as all the other participants remain unchanged
poise - a state of being balanced in a stable equilibrium
thermal equilibrium - a state in which all parts of a system are at the same temperature
disequilibrium - loss of equilibrium attributable to an unstable situation in which some forces outweigh others
2.equilibrium - a chemical reaction and its reverse proceed at equal ratesequilibrium - a chemical reaction and its reverse proceed at equal rates
acid-base balance, acid-base equilibrium - (physiology) the normal equilibrium between acids and alkalis in the body; "with a normal acid-base balance in the body the blood is slightly alkaline"
chemical reaction, reaction - (chemistry) a process in which one or more substances are changed into others; "there was a chemical reaction of the lime with the ground water"
3.equilibrium - equality of distributionequilibrium - equality of distribution    
structure, construction - a thing constructed; a complex entity constructed of many parts; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons"
conformation - a symmetrical arrangement of the parts of a thing
symmetry, proportion - balance among the parts of something
4.equilibrium - a sensory system located in structures of the inner ear that registers the orientation of the headequilibrium - a sensory system located in structures of the inner ear that registers the orientation of the head
proprioception - the ability to sense the position and location and orientation and movement of the body and its parts

equilibrium

noun
1. stability, balance, symmetry, steadiness, evenness, equipoise, counterpoise For the economy to be in equilibrium, income must equal expenditure.
2. composure, calm, stability, poise, serenity, coolness, calmness, equanimity, steadiness, self-possession, collectedness I paused and took deep breaths to restore my equilibrium.

equilibrium

noun
A stable state characterized by the cancellation of all forces by equal opposing forces:
Translations
تَوازُن
rovnováha
balanceekvilibriumligevægt
ekvilibro
tasapaino
jafnvægi
līdzsvars
echilibru
dengemuvazene

equilibrium

[ˌiːkwɪˈlɪbrɪəm] N (equilibriums or equilibria (pl)) [ˌiːkwɪˈlɪbrɪə]equilibrio m
to maintain/lose one's equilibrium (also fig) → mantener/perder el equilibrio

equilibrium

[ˌiːkwiˈlɪbriəm] n
(= balance) → équilibre m
a state of equilibrium → un état d'équilibre
(= calm) [person] → équilibre m
to recover one's equilibrium → retrouver son équilibre

equilibrium

nGleichgewicht nt; the political equilibrium of East Asiadas politische Gleichgewicht in Ostasien; to keep/lose one’s equilibriumdas Gleichgewicht halten/verlieren; in equilibriumim Gleichgewicht

equilibrium

[ˌiːkwɪˈlɪbrɪəm] nequilibrio

equilibrium

(iːkwiˈlibriəm) noun
a state of equal balance between weights, forces etc.

e·qui·lib·ri·um

n. equilibrio, balance;
___ of blood consistency___ de consistencia sanguínea.

equilibrium

n equilibrio
References in classic literature ?
If they were moved during the day he was speechless with anger and did not recover his equilibrium for a week.
The mountain breeze had by this time possessed the stifling valleys and heated bars of the river in its strong, cold embraces; the equilibrium of Nature was restored, and a shadowy mist rose from the hollow.
Its mother evidently regarded it as the one chicken of the world, and as necessary, in fact, to the world's continuance, or, at any rate, to the equilibrium of the present system of affairs, whether in church or state.
Here at present I felt afresh--for I had felt it again and again-- how my equilibrium depended on the success of my rigid will, the will to shut my eyes as tight as possible to the truth that what I had to deal with was, revoltingly, against nature.
I tottered, and on regaining my equilibrium retired back a step or two from his chair.
With a view to establishing the equilibrium of power and the peace of that part of the world, all the resources of negotiation were exhausted, and triple and quadruple alliances were formed; but they were scarcely formed before they were broken, giving an instructive but afflicting lesson to mankind, how little dependence is to be placed on treaties which have no other sanction than the obligations of good faith, and which oppose general considerations of peace and justice to the impulse of any immediate interest or passion.
If they should derive less benefit, therefore, from the Union in some respects than the less distant States, they will derive greater benefit from it in other respects, and thus the proper equilibrium will be maintained throughout.
Absorbed in the effort to maintain his equilibrium, he leaned, now forward, now back, in close imitation of the pitching of a carriage when violently jolted.
I saw what they were after, and gathering myself together I "sakked" with such marvelous success that I cleared a good hundred and fifty feet; nor did I this time, lose my equilibrium, but landed squarely upon my feet without falling.
In so doing, being portly, he lost his balance, which necessitated putting a palm to the floor to maintain his equilibrium.
Seward is loved not only by his household and his friends, but even by his patients, who, being some of them hardly in mental equilibrium, are apt to distort causes and effects.
Hence perfect equilibrium between the interior and exterior pressure, which thus neutralise each other, and which allows you to bear it without inconvenience.