flying bird vs carinate

flying bird and carinate both are nouns.

Word	Noun	Adjective	Verb	Adverb
flying bird	Yes	No	No	No
carinate	Yes	Yes	No	No

As nouns, flying bird and carinate are synonyms defined as:

flying bird and carinate: birds having keeled breastbones for attachment of flight muscles

Other synonyms of flying bird include carinate bird.

flying bird (noun)	carinate (noun)
birds having keeled breastbones for attachment of flight muscles	birds having keeled breastbones for attachment of flight muscles

flying bird (adjective)	carinate (adjective)
	having a ridge or shaped like a ridge or suggesting the keel of a ship