Ossifrage--bone-breaker. This term is generally applied to the osprey, or sea-eagle, which was in olden times supposed to have a fascinating influence over fish. In Leviticus XI 13, however, among the fowls that may not be eaten, we have "the eagle, the ossifrage, and the osprey." The ossifrage Dr. Kitto thinks the lämmer geyer of the Swiss, the largest flying bird of the old Continent. Osprey itself is only the French Orfrai or ossifrage.