# equation

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## e·qua·tion

(ĭ-kwā′zhən, -shən)
n.
1. The act or process of equating or of being equated.
2. The state of being equal.
3. Mathematics A statement asserting the equality of two expressions, usually written as a linear array of symbols that are separated into left and right sides and joined by an equal sign.
4. Chemistry A representation of a chemical reaction, usually written as a linear array in which the symbols and quantities of the reactants are separated from those of the products by an arrow or a set of opposing arrows.
5. A complex of variable elements or factors: "The world was full of equations ... there must be an answer for everything, if only you knew how to set forth the questions" (Anne Tyler).

e·qua′tion·al adj.
e·qua′tion·al·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

## equation

(ɪˈkweɪʒən; -ʃən)
n
1. (Mathematics) a mathematical statement that two expressions are equal: it is either an identity in which the variables can assume any value, or a conditional equation in which the variables have only certain values (roots)
2. the act of regarding as equal; equating
3. the act of making equal or balanced; equalization
4. a situation, esp one regarded as having a number of conflicting elements: what you want doesn't come into the equation.
5. the state of being equal, equivalent, or equally balanced
6. a situation or problem in which a number of factors need to be considered
7. (Chemistry) See chemical equation
8. astronomy See personal equation
eˈquational adj
eˈquationally adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## e•qua•tion

(ɪˈkweɪ ʒən, -ʃən)

n.
1. the act of equating or making equal.
2. the state of being equated or equal.
3. equally balanced state; equilibrium.
4. an expression or a proposition, often algebraic, asserting the equality of two quantities.
5. a symbolic representation in chemistry showing the kind and amount of the starting materials and products of a reaction.
[1350–1400; Middle English < Latin]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

## e·qua·tion

(ĭ-kwā′zhən)
1. Mathematics A written statement indicating the equality of two expressions. It consists of a sequence of symbols that is split into left and right sides joined by an equal sign. For example, 2 + 3 + 5 = 10 is an equation.
2. Chemistry A written representation of a chemical reaction, in which the symbols and amounts of the reactants are separated from those of the products by an equal sign, arrow, or a set of opposing arrows. For example, NaOH + HCl = NaCl + H2O is an equation.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 equation - a mathematical statement that two expressions are equalmath, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangementregression equation, regression of y on x - the equation representing the relation between selected values of one variable (x) and observed values of the other (y); it permits the prediction of the most probable values of ylinear equation - a polynomial equation of the first degreequadratic, quadratic equation - an equation in which the highest power of an unknown quantity is a squarebiquadratic equation, biquadratic - an equation of the fourth degreedifferential equation - an equation containing differentials of a functionsimultaneous equations - a set of equations in two or more variables for which there are values that can satisfy all the equations simultaneouslymathematical statement - a statement of a mathematical relationexponential equation - an equation involving exponential functions of a variable 2 equation - a state of being essentially equal or equivalent; equally balanced; "on a par with the best"status, position - the relative position or standing of things or especially persons in a society; "he had the status of a minor"; "the novel attained the status of a classic"; "atheists do not enjoy a favorable position in American life"egalite, egality - social and political equality; "egality represents an extreme leveling of society"tie - equality of score in a contest 3 equation - the act of regarding as equalequatingequalisation, equalization, leveling - the act of making equal or uniform
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

## equation

noun the equation between higher spending and higher taxes
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

## equation

noun
The state of being equivalent:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations
مُعادَلةمُعادَلَه
rovnice
ligningregnestykke
yhtälö
jednadžba
egyenletkiegyenlítés
jafnaefnajafna

방정식
rovnica
enačba
ekvation
สมการ
phương trình

## equation

[ɪˈkweɪʒən] N
1. (Math) →
to enter (into) the equation (fig) →
fairness did not seem to enter into the equation
2. (= linking) the equation of sth with sthla identificación de algo con algo
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

## equation

[ɪˈkweɪʒən] n
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

## equation

n (Math, fig) → Gleichung f; the equation of religion and moralitydie Gleichsetzung von Religion mit Moralität; to balance the equation between work and leisure; that doesn’t even enter the equation
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

## equation

[ɪˈkweɪʒn] n (Math) →
equations of motion (Phys) →
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

## equate

(iˈkweit) verb
to regard as the same in some way. He equates money with happiness.
eˈquation (-ʒən) noun
1. a statement that two things are equal or the same. xy+xy=2xy is an equation.
2. a formula expressing the action of certain substances on others. 2H2 + O2 = 2 H2O is an equation.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

## equation

rovnice ligning yhtälö jednadžba 等しくすること 방정식 ekvation สมการ phương trình
Multilingual Translator © HarperCollins Publishers 2009
References in periodicals archive ?
This field satisfies the equation of motion of a simple fluid, provided inertial effects are negligible.
The explicit form of the differential equation of motion is sought, for which it is necessary to solve the irrational equation, and to choose from the solutions the one that describes the actual motion of the rotor.
The method of asymptotic perturbation is adopted to obtain the four-dimension nonlinear averaged equation of motion for the blade in the case of 1: 3 internal resonance-1/2 subharmonic resonance.
As a consequence, the equation of motion of the mass density is given as
If two equal positive charges are fixed at one coordinate axis at equal distances from the other coordinate axis along which two or three negative equal charges move, then there exists an equilibrium configuration of the negative charges and periodic solutions of their Coulomb equation of motion .
The general equation of motion which govern the motion of the yarn are known [13-40]:
In fluid field, Bernard  described the equations of motion for six velocity potentials of perfect fluids which led to a variational principle that reproduced the Eulerian equation of motion. Saarloos shown that the density function (mass, momentum and energy fields) obeys a Liouville equation for hydrodynamics ideal fluid.
Substitution of these terms into equation (1) yields the dimensionless governing equation of motion
Differential Equation of Motion with Parametric Resonance Considering Cable-Beam Coupling.
In the stochastic electrodynamics approach, the equation of motion of the charged particle in the zeropoint field is known as Brafford-Marshall equation  which is simply the Abraham-Lorentz  equation of motion of a charged particle of mass m and charge e and it is given by

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