Lewis & Short

ossĭfrăgus, a, um, adj. [2. os-frango],

  1. I. bone-breaking, Cass. Sev. ap. Sen. Contr. 5, 33.
  2. II. Subst.: ossĭfrăgus, i, m., and ossĭfrăga, ae, f., the sea-eagle, osprey, Plin. 10, 7, 8, § 20; 30, 7, 20, § 63: accipitres, atque ossifragae, Lucr. 5, 1079; cf. Isid. Orig. 12, 7, 59.