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[ih-kwey-zhuh n, -shuh n]
/ɪˈkweɪ ʒən, -ʃən/

1.

the act of equating or making equal; equalization:

the symbolic equation of darkness with death.

2.

equally balanced state; equilibrium.

3.

Mathematics. an expression or a proposition, often algebraic, asserting the equality of two quantities.

4.

Also called chemical equation. Chemistry. a symbolic representation showing the kind and amount of the starting materials and products of a reaction.

Dictionary.com Unabridged

Based on the Random House Dictionary, © Random House, Inc. 2014.

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Based on the Random House Dictionary, © Random House, Inc. 2014.

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Examples for equations

- The former first taught the method of expressing curves by
*equations*. - The time machine is a computer model of the atmosphere, built not from air and water vapor but from data and
*equations*. - Here's a tale of two
*equations*that represent human exchange. - His office was cluttered with textbooks and academic journals, and on one wall there was a whiteboard covered with
*equations*. - In the world of terrorism studies, the rhetoric of righteousness gives way to equilibrium
*equations*. - In pursuit of it, he conducted elaborate experiments in the science of tea-making, deriving
*equations*for brewing the perfect cup. - He went to see his high-school science teacher, and covered the blackboard with drawings and
*equations*. - But there is nothing about actually being able to model a system by its
*equations*, or solve it using mathematical techniques. - And remember not to define the parameters of any
*equations*you use. - He counted off for grammatical and spelling errors on an engineering test that was mostly
*equations*and calculations.

British Dictionary definitions for equations

/ɪˈkweɪʒən; -ʃən/

noun

1.

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.

8.

Derived Forms

equational, adjective

equationally, adverb

equationally, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition

© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins

Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins

Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Word Origin and History for equations

equation

late 14c., a term in astrology; meaning action of making equal is from 1650s; mathematical sense is from 1560s, on notion of equalizing the expressions; from L. aequationem, from aequare (see equal). Chemistry sense is from 1807.

Online Etymology Dictionary, © 2010 Douglas Harper

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equations in Medicine

**equation** e·qua·tion (ĭ-kwā'zhən, -shən)*n.*

A statement asserting the equality of two mathematical expressions, usually written as a linear array of symbols that are separated into left and right sides and are joined by an equal sign.

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 equal sign, an arrow, or a set of opposing arrows.

The American Heritage® Stedman's Medical Dictionary

Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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equations in Science

The American Heritage® Science Dictionary

Copyright © 2002. Published by Houghton Mifflin. All rights reserved.

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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.

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equations in Culture

An expression of equality between two formulas in mathematics. The two formulas are written with an equal sign between them: 2 + 2 = 4 is an equation, as is *E* = *mc*2.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition

Copyright © 2005 by Houghton Mifflin Company.

Published by Houghton Mifflin Company. All rights reserved.

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Copyright © 2005 by Houghton Mifflin Company.

Published by Houghton Mifflin Company. All rights reserved.

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