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

     

    blackfly

     noun
    noun
    BrE BrE//ˈblækflaɪ//
     
    ; NAmE NAmE//ˈblækflaɪ//
     
    (pl. blackfly, blackflies) Invertebrates
     
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  1. 1a small black or dark green insect that damages plants See related entries: Invertebrates
  2. 2(also black fly) a small black fly that sucks blood from humans and animals See related entries: Invertebrates