carnauba vs carnauba palm

carnauba and carnauba palm both are nouns.

Word	Noun	Adjective	Verb	Adverb
carnauba	Yes	No	No	No
carnauba palm	Yes	No	No	No

As nouns, carnauba and carnauba palm are synonyms defined as:

carnauba and carnauba palm: Brazilian fan palm having an edible root; source of a useful leaf fiber and a brittle yellowish wax

Other synonyms of carnauba include Copernicia cerifera, Copernicia prunifera, wax palm.

carnauba (noun)	carnauba palm (noun)
Brazilian fan palm having an edible root; source of a useful leaf fiber and a brittle yellowish wax	Brazilian fan palm having an edible root; source of a useful leaf fiber and a brittle yellowish wax
hard yellowish to brownish wax from leaves of the carnauba palm used especially in floor waxes and polishes