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English definition of “complication”

complication

noun uk   /ˌkɒm.plɪˈkeɪ.ʃən/ us    /ˌkɑːm-/
C1 [C or U] something that makes a situation more difficult, or the act of doing this: Dave couldn't find his passport at the airport and then there were further complications when Fiona lost her baggage. If any complications arise, let me know and I'll help. C2 [C] an extra medical problem that makes it more difficult to treat an existing illness: If there are no complications, the doctor says that she'll be able to come home within two weeks.
(Definition of complication from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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