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equation

[ih-kwey-zhuh n, -shuh n]
noun
  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.
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Origin of equation

1350–1400; Middle English < Latin aequātiōn- (stem of aequātiō) an equalizing. See equate, -ion
Related formsnon·e·qua·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for non-equation

equation

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 elementswhat 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. See chemical equation
  8. astronomy See personal equation
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Derived Formsequational, adjectiveequationally, 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

Word Origin and History for non-equation

equation

n.

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 Latin aequationem (nominative aequatio) "an equal distribution, community," from past participle stem of aequare (see equal (adj.)). Chemistry sense is from 1807.

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Online Etymology Dictionary, © 2010 Douglas Harper
non-equation in Medicine

equation

(ĭ-kwā′zhən)
n.
  1. 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.
  2. 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, arrow, or set of opposing arrows.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
non-equation in Science

equation

[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, Ca(OH)2 + H2SO4 = CaSO4 + 2H2O, is an equation.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
non-equation in Culture

equation

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 = mc2.

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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.