Definition of air traffic control noun from the Oxford Advanced American Dictionary

     

    air traffic control

     noun
    noun
     
    [uncountable]
     
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  1. 1the activity of giving instructions by radio to pilots of aircraft so that they know when and where to take off or land air traffic control systems
  2. 2the group of people or the organization that provides an air traffic control service The pilot was given clearance to land by air traffic control.
See the Oxford Advanced Learner's Dictionary entry: air traffic control