Definition of Circumference

1. Noun. The size of something as given by the distance around it.

Exact synonyms: Perimeter
Generic synonyms: Size
Specialized synonyms: Girth

2. Noun. The boundary line encompassing an area or object. "A danger to all races over the whole circumference of the globe"
Exact synonyms: Circuit
Generic synonyms: Border, Borderline, Boundary Line, Delimitation, Mete
Derivative terms: Circumferent, Circumferential

3. Noun. The length of the closed curve of a circle.
Generic synonyms: Length
Terms within: Sextant, Straight Angle

Definition of Circumference

1. n. The line that goes round or encompasses a circular figure; a periphery.

2. v. t. To include in a circular space; to bound.

Definition of Circumference

1. Noun. (geometry) The line that bounds a circle or other two-dimensional figure ¹

2. Noun. (geometry) The length of such a line ¹

3. Noun. (obsolete) The surface of a round or spherical object ¹

¹ Source:

Definition of Circumference

1. [n -S]

Medical Definition of Circumference

1. The outer boundary, especially of a circular area. Synonym: circumferentia. Origin: L. Circumferentia, a bearing around (05 Mar 2000)

Circumference Pictures

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Lexicographical Neighbors of Circumference

circumduction gait
circumference (current term)
circumferentia articularis radii
circumferentia articularis ulnae
circumferential cartilage
circumferential clasp
circumferential clasp arm
circumferential fibrocartilage
circumferential implantation
circumferential lamella
circumferential wiring

Literary usage of Circumference

Below you will find example usage of this term as found in modern and/or classical literature:

1. Pelicotetics, Or, The Science of Quantity: Or, The Science of Quantity. An by Archibald Sandeman (1868)
"That the same numerical quantity should express the circumference in reference to the diameter as unit of any circle whatever can only be because the ratio ..."

2. The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago by Robert Simson, Euclid (1829)
"to the angle EHN ; and if the circumference BL be greater than EN, likewise the angle BGL is greater than EHN; and if less, less: there being then four ..."

3. Daboll's Schoolmaster's Assistant, Improved and Enlarged: Being a Plain by Nathan Daboll (1819)
"The diameter of a Circle being given, to find the circumference. ... What is the circumference of a wheel whose diameter is 4 feet ? ..."

4. The Thirteen Books of Euclid's Elements by Euclid, Johan Ludvig Heiberg (1908)
"let AK, KB be joined, let FL be again drawn from F perpendicular to AK, and be carried through to M, and let KN be joined. Since the circumference ..."

5. Transactions (1888)
"To DRAW A LINE EQUAL IN LENGTH TO THE circumference OF A CIRCLE. By JAMES PRICE, Past Vice- President. THOUGH the problem of " squaring a circle ..."

6. The Scholar's Arithmetic; Or, Federal Accountant...: The Whole in a Form and by Daniel Adams (1825)
"To find the .circumference of the circle described by the end of ike lever, multiply the double of the lever by 3,, the product will be the circumference. ..."

7. Science by American Association for the Advancement of Science (1912)
"Thoracic circumference.—In a horizontal plane at the level of the base of the ... circumference of the Arm.—The maximum circumference below the deltoid, ..."

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