Definition of jet stream noun from the Oxford Advanced Learner's Dictionary


    jet stream

    BrE BrE//ˈdʒet striːm//
    ; NAmE NAmE//ˈdʒet striːm//
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  1. 1(also the jet stream) [singular] a strong wind that blows high above the earth and that has an effect on the weather
  2. 2[countable] the flow of gases from a plane’s engine
See the Oxford Advanced American Dictionary entry: jet stream