Arcadia Aegypti vs geographical region

Arcadia Aegypti and geographical region both are nouns.

Word	Noun	Adjective	Verb	Adverb
Arcadia Aegypti	Yes	No	No	No
geographical region	Yes	No	No	No

Arcadia Aegypti (noun)	geographical region (noun)
a department of Greece in the central Peloponnese	a demarcated area of the Earth