hypochondria vs hypochondriasis

hypochondria and hypochondriasis both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypochondria	Yes	No	No	No
hypochondriasis	Yes	No	No	No

As nouns, hypochondria and hypochondriasis are synonyms defined as:

hypochondria and hypochondriasis: chronic and abnormal anxiety about imaginary symptoms and ailments

hypochondria (noun)	hypochondriasis (noun)
chronic and abnormal anxiety about imaginary symptoms and ailments	chronic and abnormal anxiety about imaginary symptoms and ailments