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

     

    BMX

     noun
    noun
    BrE BrE//ˌbiː em ˈeks//
     
    ; NAmE NAmE//ˌbiː em ˈeks//
     
    Cycling
     
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  1. 1[countable] a strong bicycle which can be used for riding on rough ground See related entries: Cycling
  2. 2 (also BMXing) [uncountable] the sport of racing BMX bicycles on rough ground See related entries: Cycling
  3. Word Origin 1970s: from the initial letters of bicycle motocross, with X standing for cross.
See the Oxford Advanced American Dictionary entry: BMX