Source : Webster's Revised Unabridged Dictionary (1913)

Osprey \Os"prey\, Ospray \Os"pray\, n. [Through OF. fr. L.
   ossifraga (orig., the bone breaker); prob. influenced by
   oripelargus (mountain stork, a kind of eagle, Gr. ?); cf. OF.
   orpres, and F. orfraie. See {Ossifrage}.] (Zo["o]l.)
   The fishhawk.

Source : WordNet®

osprey
     n : large harmless hawk found worldwide that feeds on fish and
         builds a bulky nest often occupied for years [syn: {fish
         hawk}, {fish eagle}, {sea eagle}, {Pandion haliaetus}]