- backworm
- Filanders Fil"an*ders, n. pl. [F. filandres, fr. L. filum thread.] (Falconry) A disease in hawks, characterized by the presence of small threadlike worms, also of filaments of coagulated blood, from the rupture of a vein; -- called also {backworm}. --Sir T. Browne. [1913 Webster]
The Collaborative International Dictionary of English. 2000.