plumbism vs illness

plumbism and illness both are nouns.

Word	Noun	Adjective	Verb	Adverb
plumbism	Yes	No	No	No
illness	Yes	No	No	No

As nouns, illness is a hypernym of plumbism; that is, illness is a word with a broader meaning than plumbism:

plumbism: toxic condition produced by the absorption of excessive lead into the system
illness: impairment of normal physiological function affecting part or all of an organism

Other hypernyms of plumbism include malady, sickness, unwellness.

plumbism (noun)	illness (noun)
toxic condition produced by the absorption of excessive lead into the system	impairment of normal physiological function affecting part or all of an organism