eczema marginatum vs roundworm

eczema marginatum and roundworm both are nouns.

Word	Noun	Adjective	Verb	Adverb
eczema marginatum	Yes	No	No	No
roundworm	Yes	No	No	No

As nouns, roundworm is a hypernym of eczema marginatum; that is, roundworm is a word with a broader meaning than eczema marginatum:

eczema marginatum: fungal infection of the groin (most common in men)
roundworm: infections of the skin or nails caused by fungi and appearing as itching circular patches

Other hypernyms of eczema marginatum include ringworm, tinea.

eczema marginatum (noun)	roundworm (noun)
fungal infection of the groin (most common in men)	unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic
	infections of the skin or nails caused by fungi and appearing as itching circular patches