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Noun: horsefly  'hors,flI
  1. Winged fly parasitic on horses
    - horse tick, Hippobosca equina
  2. Large swift fly the female of which sucks blood of various animals
    - cleg, clegg, horse fly

Derived forms: horseflies

Type of: gadfly, hippoboscid, louse fly

Part of: family Tabanidae, genus Hippobosca, Hippobosca, Tabanidae

Encyclopedia: Horsefly, British Columbia