equilibrium

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See also: Equilibrium and équilibrium

English

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Wikipedia

Alternative forms

Etymology

From Latin aequilībrium, from equal + lībra (“balance”).

Pronunciation

  • (Received Pronunciation) IPA(key): /ɛkwɪˈlɪbɹɪəm/, /iːkwɪˈlɪbɹɪəm/
  • Audio (Southern England)(file)

Noun

equilibrium (plural equilibriums or equilibria)

  1. The condition of a system in which competing influences are balanced, resulting in no net change.
    • 1733, Philip Miller, “HYDROSTATICKS”, in The Gardeners Dictionary: , 2nd edition, volume I, London: C Rivington, , →OCLC, column 1:
      To Hydroſtaticks belong whatever relates to the Gravities and Equilibria of Liquors; with the Art of weighing Bodies in Water, in order to eſtimate the ſpecifick Gravities.
    • 1999, The Matrix, Agent Smith speech
      Every mammal on this planet instinctively develops a natural equilibrium with the surrounding environment but you humans do not. You move to an area and you multiply and multiply until every natural resource is consumed and the only way you can survive is to spread to another area. There is another organism on this planet that follows the same pattern. Do you know what it is? A virus.
    Synonyms: balance, stability
    Antonyms: disequilibrium, imbalance, instability
  2. Mental balance.
    Synonym: sanity
    Antonyms: insanity, instability, madness
  3. (chemistry) The state of a reaction in which the rates of the forward and reverse reactions are the same.
  4. (physics) The state of a body at rest or in uniform motion in which the resultant of all forces on it is zero.
    • 1943 May and June, “Notes and News: Effective Locomotive "Ack-Ack" Fire”, in Railway Magazine, page 180:
      It now appears that the locomotive did not blow up, as was commonly stated at the time, but that the aeroplane flew so low as to come into contact with the dome of the engine, knocking it off. It was the combination of the impact and the uprush of steam that so disturbed the equilibrium of the raider as to cause it to crash.
    Antonyms: disequilibrium, non-equilibrium

Hypernyms

Hyponyms

  • (in physics): heat death (thermodynamic equilibrium state of maximum entropy)

Derived terms

Related terms

Translations

physics: state of a body at rest or in uniform motion in which the resultant of all forces on it is zero
The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

References

  1. ↑ 1.0 1.1 “equilibrium” listed in the Oxford English Dictionary
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