flightless bird

1 definition found

flightless bird - WordNet (r) 2.1 (2005) :

  flightless bird
      n 1: flightless birds having flat breastbones lacking a keel for
           attachment of flight muscles: ostriches; cassowaries; emus;
           moas; rheas; kiwis; elephant birds [syn: ratite, ratite bird
           , flightless bird] [ant: carinate, carinate bird
           , flying bird]