ratite: flightless birds having flat breastbones lacking a keel for attachment of flight muscles: ostriches; cassowaries; emus; moas; rheas; kiwis; elephant birds
bird: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
chromatogram: the recording (column or paper strip) on which the constituents of a mixture are adsorbed in chromatography