'Backworm' definitions:

Definition of 'Backworm'

From: GCIDE
  • Backworm \Back"worm`\, n. [2d back, n. + worm.] A disease of hawks. See Filanders. --Wright. [1913 Webster]

Definition of 'backworm'

From: GCIDE
  • 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]