pachyderma vs nevoid elephantiasis

pachyderma and nevoid elephantiasis both are nouns.

Word	Noun	Adjective	Verb	Adverb
pachyderma	Yes	No	No	No
nevoid elephantiasis	Yes	No	No	No

As nouns, pachyderma and nevoid elephantiasis are synonyms defined as:

pachyderma and nevoid elephantiasis: thickening of the skin (usually unilateral on an extremity) caused by congenital enlargement of lymph vessel and lymph vessel obstruction

pachyderma (noun)	nevoid elephantiasis (noun)
thickening of the skin (usually unilateral on an extremity) caused by congenital enlargement of lymph vessel and lymph vessel obstruction	thickening of the skin (usually unilateral on an extremity) caused by congenital enlargement of lymph vessel and lymph vessel obstruction