1. (flightless birds having flat breastbones lacking a keel for attachment of flight muscles: ostriches
cassowaries
emus
moas
rheas
kiwis
elephant birds)
nielot
synonim: ratite
synonim: flightless bird

2. (flightless birds having flat breastbones lacking a keel for attachment of flight muscles: ostriches
cassowaries
emus
moas
rheas
kiwis
elephant birds)
Ratitae, superorder Ratitae: : synonim: ratite
synonim: flightless bird