giant armadillo vs Priodontes giganteus

giant armadillo and Priodontes giganteus both are nouns.

Word	Noun	Adjective	Verb	Adverb
giant armadillo	Yes	No	No	No
Priodontes giganteus	Yes	No	No	No

As nouns, giant armadillo and Priodontes giganteus are synonyms defined as:

giant armadillo and Priodontes giganteus: about three feet long exclusive of tail

Other synonyms of giant armadillo include tatou, tatu.

giant armadillo (noun)	Priodontes giganteus (noun)
about three feet long exclusive of tail	about three feet long exclusive of tail