Definition of colon noun from the Oxford Advanced Learner's Dictionary

     

    colon

     noun
    noun
    BrE BrE//ˈkəʊlən//
     
    ; NAmE NAmE//ˈkoʊlən//
     
    Internal anatomy, Punctuation
     
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  1. 1 the mark ( : ) used to introduce a list, a summary, an explanation, etc. or before reporting what somebody has said compare semicolon See related entries: Punctuation
  2. 2 (anatomy) the main part of the large intestine (= part of the bowels) See related entries: Internal anatomy
  3. Word Origin sense 1 mid 16th cent. (as a term in rhetoric denoting a section of a complex sentence, or a pause before it): via Latin from Greek kōlon ‘limb, clause’. sense 2 late Middle English: via Latin from Greek kolon.
See the Oxford Advanced American Dictionary entry: colon