Definition of osprey noun from the Oxford Advanced Learner's Dictionary

 

osprey

 noun
noun
BrE BrE//ˈɒspreɪ//
 
; NAmE NAmE//ˈɑːspreɪ//
 
Birds
 
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a large bird of prey (= a bird that kills other creatures for food) that eats fish See related entries: Birds Word Origin late Middle English: from Old French ospres, apparently based on Latin ossifraga (mentioned by Pliny, the Roman senator and writer, and identified with the lammergeier ‘a large vulture’), from os ‘bone’ + frangere ‘to break’, probably because of the lammergeier's habit of dropping bones from a height to break them and reach the marrow.
See the Oxford Advanced American Dictionary entry: osprey