Definition of air pocket noun from the Oxford Advanced Learner's Dictionary

     

    air pocket

     noun
    noun
    BrE
     
    ; NAmE
     
    Plane travel
     
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  1. 1a closed area that becomes filled with air Make sure there are no air pockets around the roots of the plant.
  2. 2an area of low air pressure that makes a plane suddenly drop while flying The plane hit an air pocket. See related entries: Plane travel
See the Oxford Advanced American Dictionary entry: air pocket