# circumference

[ser-kuhm-fer-uh ns]

- the outer boundary, especially of a circular area; perimeter: the circumference of a circle.
- the length of such a boundary: a one-mile circumference.
- the area within a bounding line: the vast circumference of his mind.

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## Origin of circumference^{}

## Synonyms

See more synonyms on Thesaurus.com1. periphery, circuit.

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

## Examples from the Web for circumference

### Contemporary Examples

### Historical Examples

#### Draw a diagram representing the circumference line and pitch in feet.

Flying MachinesW.J. Jackman and Thos. H. Russell

#### Melville is an island of more than a mile in circumference, with low, rocky shores.

Ned MyersJames Fenimore Cooper

#### From points near the circumference these circles or curves are very small.

#### Draw a few straight lines, from the centre to the circumference of a circle.

Modern Painters Volume I (of V)John Ruskin

#### The diameter is then multiplied by 3.1416 to obtain the circumference.

Boys' Book of Model BoatsRaymond Francis Yates

# circumference

- the boundary of a specific area or geometric figure, esp of a circle
- the length of a closed geometric curve, esp of a circle. The circumference of a circle is equal to the diameter multiplied by π

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## Word Origin

C14: from Old French circonference, from Latin circumferre to carry around, from circum- + ferre to bear

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 circumference

### n.

late 14c., from Latin circumferentia, neuter plural of circumferens, present participle of circumferre "to lead around, take around, carry around," from circum "around" (see circum-) + ferre "to carry" (see infer). A loan-translation of Greek periphereia "periphery, the line round a circular body," literally "a carrying round" (see periphery). Related: Circumferential.

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Online Etymology Dictionary, © 2010 Douglas Harper

# circumference

[sər-kŭm′fər-əns]

- The boundary line of a circle.
- The boundary line of a figure, area, or object.
- The length of such a boundary. The circumference of a circle is computed by multiplying the diameter by pi.

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The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

# circumference

[(suhr-kum-fuhr-uhns)]

The measure of the distance around a circle.

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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.