Definition of prong noun from the Oxford Advanced American Dictionary

     

    prong

     noun
    noun
    NAmE//prɔŋ//
     
    , NAmE//prɑŋ//
     
     
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  1. 1 each of the two or more long pointed parts of a fork
  2. 2each of the separate parts of an attack, argument, etc., that move toward a place, subject, etc. from different positions
  3. 3-pronged (in adjectives) having the number or type of prongs mentioned a two-pronged fork a three-pronged attack
See the Oxford Advanced Learner's Dictionary entry: prong