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

jetpack

noun
 
/ˈdʒetpæk/
 
/ˈdʒetpæk/
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  1. (in science fiction stories) a device that somebody wears on their shoulders like a backpack that enables them to fly
    • All game players have a spacesuit, a jetpack and a ray gun.
    • The movie features a great jetpack chase.
    Word Origin1950s: from jet and pack.
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