hypericism vs dermatitis

hypericism and dermatitis both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypericism	Yes	No	No	No
dermatitis	Yes	No	No	No

As nouns, dermatitis is a hypernym of hypericism; that is, dermatitis is a word with a broader meaning than hypericism:

hypericism: a severe dermatitis of herbivorous domestic animals attributable to photosensitivity from eating Saint John's wort
dermatitis: inflammation of the skin; skin becomes itchy and may develop blisters

hypericism (noun)	dermatitis (noun)
a severe dermatitis of herbivorous domestic animals attributable to photosensitivity from eating Saint John's wort	inflammation of the skin; skin becomes itchy and may develop blisters