circumference

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English

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English Wikipedia has an article on:
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Circumference and diameter

Etymology

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From Latin circumferentia, from circum (around) + ferō (I carry). Displaced native Old English ymbgang.

Pronunciation

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Noun

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circumference (plural circumferences)

  1. (geometry) The line that bounds a circle or other two-dimensional figure.
  2. (geometry) The length of such a line.
  3. (obsolete) The surface of a round or spherical object.
  4. (graph theory) The length of the longest cycle of a graph.

Synonyms

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Derived terms

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Translations

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Verb

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circumference (third-person singular simple present circumferences, present participle circumferencing, simple past and past participle circumferenced)

  1. (obsolete, transitive) To include in a circular space; to bound.
    • 1650, Thomas Browne, Pseudodoxia Epidemica: [], 2nd edition, London: [] A[braham] Miller, for Edw[ard] Dod and Nath[aniel] Ekins, [], →OCLC:
      Nor is the vigour of this great body included only in itself, or circumferenced by its surface