# circumference

## circumference

[ser-kuhm-fer-uhns]
noun
1.
the outer boundary, especially of a circular area; perimeter: the circumference of a circle.
2.
the length of such a boundary: a one-mile circumference.
3.
the area within a bounding line: the vast circumference of his mind.

Origin:
1350–1400; Middle English < Late Latin circumferentia, equivalent to circum- circum- + fer- (stem of ferre to carry) + -entia -ence

1. periphery, circuit.
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World English Dictionary
 circumference (səˈkʌmfərəns) —n 1. the boundary of a specific area or geometric figure, esp of a circle 2. the length of a closed geometric curve, esp of a circle. The circumference of a circle is equal to the diameter multiplied by π [C14: from Old French circonference, from Latin circumferre to carry around, from circum- + ferre to bear] circumferential —adj circumfer'entially —adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

circumference
1393, from L. circumferentia, neut. pl. of circumferens prp. of circumferre (loan-transl. of Gk. periphereia "rotundity, periphery"), from circum "around" + ferre "to carry" (see infer).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
 circumference   (sər-kŭm'fər-əns)  Pronunciation Key  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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American Heritage
Cultural Dictionary
circumference [(suhr-kum-fuhr-uhns)]

The measure of the distance around a circle.

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