Source : Webster's Revised Unabridged Dictionary (1913)

Ossifrage \Os"si*frage\, n. [L. ossifraga, ossifragus, osprey,
   fr. ossifragus bone breaking; os, ossis, a bone + frangere,
   fractum, to break. See {Osseous}, {Break}, and cf. {Osprey},
   {Ossifragous}.] (Zo["o]l.)
   (a) The lammergeir.
   (b) The young of the sea eagle or bald eagle. [Obs.]