English Explanatory Dictionary

equation

English dictionary entry

Meanings

noun
  1. The act or process of equating two or more things, or the state of those things being equal (that is, identical).
  2. 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. A small correction to observed values to remove the effects of systematic errors in an observation.

Pronunciation

/ɪˈkweɪ.ʒən/ /-ʃən/ LL-Q1860 (eng)-Eleanorrrrrrrrrr-equation.wav En-us-equation.ogg /ɪˈkwæɪ.ʒən/ /əˈkwæɪ.ʒən/ /ˈikˌʋe.ʃən/ /ɪkˈʋe.ʃən/ /-(d)ʒən/

Word forms

equation equations æquation

Etymology

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

Synonyms

equating

Related words

equality equational identity inequality inequation

Derived words

absolute personal equation accounting equation affected equation Airy equation algebraic equation Arrhenius equation balance sheet equation Bellman equation Bernoulli's equation Boltzmann equation Cartesian equation Cassie equation Cauchy-Riemann equation Chazy equation chemical equation cubic equation d'Alembert's equation delay differential equation difference equation differential equation Diophantine equation Dirac equation Drake equation Duffing equation Ehrenfest equation eigenequation Einstein field equation enter into the equation enter the equation equation clock equation division equationism equationist equationlike equation of motion equation of time Ernst equation Euler-Lagrange equation exponential equation Fermat equation Flory-Fox equation Gauss-Codazzi equation generalized estimating equation Gibbs-Helmholtz equation Gibbs-Thomson equation Hagen-Poiseuille equation half-equation Hall-Petch equation Hamilton-Jacobi-Bellman equation Hamilton-Jacobi equation Hartree equation Henderson-Hasselbalch equation HJB equation integral equation Kepler's equation Lagrange's equation Lagrange's equations Laguerre's equation Lanchester equation Laplace's equation
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