# approximation

[uh-prok-suh-mey-shuh n]

- a guess or estimate: Ninety-three million miles is an approximation of the distance of the earth from the sun.
- nearness in space, position, degree, or relation; proximity; closeness.
- Mathematics, Physics. a result that is not necessarily exact, but is within the limits of accuracy required for a given purpose.

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## Origin of approximation^{}

1400–50; late Middle English approximacioun (< Middle French) < Medieval Latin approximātiōn-, stem of approximātiō. See approximate, -ion

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## Examples from the Web for approximation

### Contemporary Examples

### Historical Examples

#### The approximation of sound in these names is sufficiently evident.

#### Even an approximation to it is rare, and absolute accuracy is still rarer.

A Book for All ReadersAinsworth Rand Spofford

#### "I thought so, too," she answered, with that simplicity ever attending our approximation to the truth.

Tiverton TalesAlice Brown

#### This, out here to the southwest, is what might be called an approximation to his trail.

Under FireCharles King

#### The more perfect the approximation to truth, the more perfect is art.

Spontaneous Activity in EducationMaria Montessori

## approximation

- the process or result of making a rough calculation, estimate, or guesshe based his conclusion on his own approximation of the fuel consumption
- an imprecise or unreliable record or versionan approximation of what really happened
- maths an inexact number, relationship, or theory that is sufficiently accurate for a specific purpose
- maths
- an estimate of the value of some quantity to a desired degree of accuracy
- an expression in simpler terms than a given expression which approximates to it

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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 approximation

### n.

early 15c., "act of coming near or close," noun of action from approximate (v.). Meaning "result of approximating" is from 1650s.

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Online Etymology Dictionary, © 2010 Douglas Harper

## approximation

(ə-prŏk′sə-mā′shən)- Bringing tissue edges into desired apposition for suturing.

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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.