chyloderma vs elephantiasis

chyloderma and elephantiasis both are nouns.

Word	Noun	Adjective	Verb	Adverb
chyloderma	Yes	No	No	No
elephantiasis	Yes	No	No	No

As nouns, elephantiasis is a hypernym of chyloderma; that is, elephantiasis is a word with a broader meaning than chyloderma:

chyloderma: swelling of the scrotum resulting from chronic lymphatic obstruction
elephantiasis: hypertrophy of certain body parts (usually legs and scrotum); the end state of the disease filariasis

chyloderma (noun)	elephantiasis (noun)
swelling of the scrotum resulting from chronic lymphatic obstruction	hypertrophy of certain body parts (usually legs and scrotum); the end state of the disease filariasis