equation

== English == === Alternative forms === æquation (archaic) === Etymology === From Old French, from Latin aequātiō (“an equalizing”). Morphologically equate +‎ -ion === Pronunciation === (Received Pronunciation) IPA(key): /ɪˈkweɪ.ʒən/, (conservative) /-ʃən/ (General American, Canada) IPA(key): /ɪˈkweɪ.ʒən/ (General Australian) IPA(key): /ɪˈkwæɪ.ʒən/ (New Zealand) IPA(key): /əˈkwæɪ.ʒən/ Rhymes: -eɪʒən, -eɪʃən Hyphenation: e‧qua‧tion === Noun === equation (plural equations) The act or process of equating two or more things, or the state of those things being equal (that is, identical). Synonym: equating (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. (astronomy) A small correction to observed values to remove the effects of systematic errors in an observation. ==== Derived terms ==== ==== Related terms ==== ==== Translations ====