What does equation mean?

Definitions for equation
ɪˈkweɪ ʒən, -ʃənequa·tion

Here are all the possible meanings and translations of the word equation.

Princeton's WordNet

  1. equationnoun

    a mathematical statement that two expressions are equal

  2. equality, equivalence, equation, parnoun

    a state of being essentially equal or equivalent; equally balanced

    "on a par with the best"

  3. equation, equatingnoun

    the act of regarding as equal


  1. equationnoun

    An assertion that two expressions are equal, expressed by writing the two expressions separated by an equal sign; from which one is to determine a particular quantity.

    Etymology: From aequatio.

  2. equationnoun

    A small correction to observed values to remove the effects of systematic errors in an observation.

    Etymology: From aequatio.

Webster Dictionary

  1. Equationnoun

    a making equal; equal division; equality; equilibrium

    Etymology: [L. aequatio an equalizing: cf. F. quation equation. See Equate.]

  2. Equationnoun

    an expression of the condition of equality between two algebraic quantities or sets of quantities, the sign = being placed between them; as, a binomial equation; a quadratic equation; an algebraic equation; a transcendental equation; an exponential equation; a logarithmic equation; a differential equation, etc

    Etymology: [L. aequatio an equalizing: cf. F. quation equation. See Equate.]

  3. Equationnoun

    a quantity to be applied in computing the mean place or other element of a celestial body; that is, any one of the several quantities to be added to, or taken from, its position as calculated on the hypothesis of a mean uniform motion, in order to find its true position as resulting from its actual and unequal motion

    Etymology: [L. aequatio an equalizing: cf. F. quation equation. See Equate.]


  1. Equation

    In mathematics, an equation is a formula of the form A = B, where A and B are expressions containing one or several variables called unknowns, and "=" denotes the equality binary relation. Although written in the form of proposition, an equation is not a statement, but a problem consisting in finding the values, called solutions, that, when substituted to the unknowns, yields equal values of expressions A and B. For example, 2 is the unique solution of the equation x + 2 = 4, in which the unknown is x. Historically, equations arose from the mathematical discipline of algebra, but later become ubiquitous. An equality may not be confused with identities which are presented with the same notation but have a different semantic: for example 2 + 2 = 4 and x + y = y + x are identities in arithmetic, and do not constitute any values-finding problem, even if include variables. Equation may also refer to a relation between some variables that is expressed by the equality of some expressions of their values. For example the equation of the unit circle is x² + y² = 1, which means that a point belongs to the circle if and only if its coordinates are related by this equation. Most physical laws are expressed by equations. One of the most popular ones is Einstein's equation E = mc².

Suggested Resources

  1. equation

    Song lyrics by equation -- Explore a large variety of song lyrics performed by equation on the Lyrics.com website.

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'equation' in Spoken Corpus Frequency: #3904

  2. Written Corpus Frequency

    Rank popularity for the word 'equation' in Written Corpus Frequency: #3711

  3. Nouns Frequency

    Rank popularity for the word 'equation' in Nouns Frequency: #1237

How to pronounce equation?

How to say equation in sign language?


  1. Chaldean Numerology

    The numerical value of equation in Chaldean Numerology is: 3

  2. Pythagorean Numerology

    The numerical value of equation in Pythagorean Numerology is: 3

Examples of equation in a Sentence

  1. Geoff Ogilvy:

    Geoff Ogilvy is another guy who has heard all about the 80-20 equation, and Geoff Ogilvy believes it to be accurate in most cases. It's probably true for 80 percent of the players, guys like Tiger and Jack, and Jim Furyk and Matt Kuchar, they make money in all their tournaments. So there's probably 80 percent of the players who make 80 percent of their money in 20 tournaments.

  2. Maged Dessouky:

    Size matters, but size isn't everything, of course, when we get to autonomous vehicles, it's going to be very interesting. That's going to change the equation completely.

  3. Clifford Truesdell:

    How did Biot arrive at the partial differential equation? [the heat conduction equation] . . . Perhaps Laplace gave Biot the equation and left him to sink or swim for a few years in trying to derive it. That would have been merely an instance of the way great mathematicians since the very beginnings of mathematical research have effortlessly maintained their superiority over ordinary mortals.

  4. James McGregor:

    The idea is how do we readjust the interface with China to protect America, American innovation and American companies. If protecting what's on your side of the equation incentivises China to do things differently, then that's a win.

  5. Shachi Kurl:

    The interdiction piece is the key part of the equation, just changing the law is not the silver bullet. It is also ensuring the bad guys are not able to get the guns into the country in the first place.

Images & Illustrations of equation

  1. equationequationequationequationequation

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Translations for equation

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    a state of irritation or annoyance
    • A. fluster
    • B. descant
    • C. huff
    • D. exacerbate

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