Horsefly

['hɔːsflaɪ] or ['hɔrsflaɪ]

(noun.) large swift fly the female of which sucks blood of various animals.

Edited by Bernice--From WordNet

(n.) Any dipterous fly of the family Tabanidae, that stings horses, and sucks their blood.

(n.) The horse tick or forest fly (Hippobosca).

Editor: Rosalie