# approximation

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

### noun

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.

## Origin of approximation

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

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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

## Related Words for approximation

resemblance, nearness, likeness, similarity, guess, estimation, conjecture, guesstimate## Examples from the Web for approximation

### Contemporary Examples of approximation

### Historical Examples of approximation

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

### noun

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

Online Etymology Dictionary, © 2010 Douglas Harper

## approximation

[ə-prŏk′sə-mā′shən]

### n.

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