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• circum-
  circum-

  a prefix with the meaning “round about, around,” found in Latin loanwords, especially derivatives of verbs that had the general senses “to encompass or surround” (circumference; circumjacent; circumstance ) or “to go around” by the means or in the manner specified by the verb (circumnavigate; circumscribe ); on this basis forming adjectives in English with the meaning “surrounding” that named by the stem (circumocular; circumpolar ).
• circum.
  circum.

  abbreviation

  circumference.
• circum–
  circum–

  A prefix meaning “around”, as in circumscribe, to draw a figure around another figure.

circum-

¹ American  

1. a prefix with the meaning “round about, around,” found in Latin loanwords, especially derivatives of verbs that had the general senses “to encompass or surround” (circumference; circumjacent; circumstance ) or “to go around” by the means or in the manner specified by the verb (circumnavigate; circumscribe ); on this basis forming adjectives in English with the meaning “surrounding” that named by the stem (circumocular; circumpolar ).

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circum. ² American  

abbreviation

1. circumference.

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circum- British  

prefix

1. around; surrounding; on all sides

   circumlocution

   circumrotate

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circum– Scientific  

1. A prefix meaning “around”, as in circumscribe, to draw a figure around another figure.

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Etymology

Origin of circum-

From Latin circum “around” (accusative of circus; see circus, circle), originally as an adverb fixed in relation to the verb, later construed as a prefix