n. [ L. ossifraga, ossifragus, osprey, fr. ossifragus bone breaking; os, ossis, a bone + frangere, fractum, to break. See Osseous, Break, and cf. Osprey, Ossifragous. ] (Zool.) (a) The lammergeir. (b) The young of the sea eagle or bald eagle. [ Obs. ] [ 1913 Webster ]