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English definition of “jet lag”

jet lag

noun [U] uk   us  
the feeling of tiredness and confusion that people experience after making a long journey in an aircraft to a place where the time is different from the place they left: Every time I fly to the States, I get really bad jet lag.
jet-lagged
adjective uk   /ˈdʒet.læɡd/ us  
(Definition of jet lag from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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