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See also: équation


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Alternative forms[edit]


From Old French, from Latin aequātiō (an equalizing). Morphologically equate +‎ -ion


  • enPR: ĭkwā'zhən, IPA(key): /ɪˈkweɪʒən/; enPR: ĭkwā'shən, IPA(key): /ɪˈkweɪʃən/
  • (file)
  • Rhymes: -eɪʒən


equation (plural equations)

  1. The act or process of equating two or more things, or the state of those things being equal (that is, identical).
    We need to bring the balance of power into equation
    • 2013, Eva Illouz, Why Love Hurts: A Sociological Explanation:
      The cultural equation of love with suffering is similar to the equation of love with an experience of both transcendence and consummation in which love is affirmed in an ostentatious display of self loss.
  2. (mathematics) An assertion that two expressions are equal, expressed by writing the two expressions separated by an equal sign; in mathematical problems, equations describe various essential aspects of the problem, each of which contributes to the resolution of the problem in part.
  3. (astronomy) A small correction to observed values to remove the effects of systematic errors in an observation.

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