noun
large swift fly the female of which sucks blood of various animals
• Hypernyms: ↑gadfly
• Member Holonyms: ↑Tabanidae, ↑family Tabanidae
* * *
any bloodsucking, usually large fly of the family Tabanidae, esp. of the genus Tabanus, a serious pest of horses, cattle, etc.
[1350-1400; ME horsfleeye]
Useful english dictionary. 2012.