Noah Webster's Dictionary 1. (n.) Any dipterous fly of the family Tabanidae, that stings horses, and sucks their blood. 2. (n.) The horse tick or forest fly (Hippobosca).

Multi-Version Concordance Horsefly (1 Occurrence) Jeremiah 46:20 Egypt is a very beautiful heifer; but destruction out of the north is come, it is come. (See NAS)