xanthemia vs carotenemia

xanthemia and carotenemia both are nouns.

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

As nouns, xanthemia and carotenemia are synonyms defined as:

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

xanthemia (noun)	carotenemia (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