horsefly

Definitions of horsefly
1

n winged fly parasitic on horses

Synonyms:
Hippobosca equina, horse tick
Type of:
hippoboscid, louse fly
bloodsucking dipterous fly parasitic on birds and mammals

n large swift fly the female of which sucks blood of various animals

Synonyms:
cleg, clegg, horse fly
Type of:
gadfly
any of various large flies that annoy livestock

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.