flying bird

Definitions of flying bird
  1. noun
    birds having keeled breastbones for attachment of flight muscles
    synonyms: carinate, carinate bird
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    flightless bird, ratite, ratite bird
    flightless birds having flat breastbones lacking a keel for attachment of flight muscles: ostriches; cassowaries; emus; moas; rheas; kiwis; elephant birds
    type of:
    warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
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