carotenemia vs xanthemia

carotenemia and xanthemia both are nouns.

Word	Noun	Adjective	Verb	Adverb
carotenemia	Yes	No	No	No
xanthemia	Yes	No	No	No

As nouns, carotenemia and xanthemia are synonyms defined as:

carotenemia and xanthemia: excess carotene in the blood stream; can cause the skin to turn a pale yellow or red color

carotenemia (noun)	xanthemia (noun)
excess carotene in the blood stream; can cause the skin to turn a pale yellow or red color	excess carotene in the blood stream; can cause the skin to turn a pale yellow or red color