hypoadrenalism vs Addison's syndrome

hypoadrenalism and Addison's syndrome both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypoadrenalism	Yes	No	No	No
Addison's syndrome	Yes	No	No	No

As nouns, hypoadrenalism and Addison's syndrome are synonyms defined as:

hypoadrenalism and Addison's syndrome: a glandular disorder caused by failure of function of the cortex of the adrenal gland and marked by anemia and prostration with brownish skin

Other synonyms of hypoadrenalism include Addison's disease, hypoadrenocorticism.

hypoadrenalism (noun)	Addison's syndrome (noun)
a glandular disorder caused by failure of function of the cortex of the adrenal gland and marked by anemia and prostration with brownish skin	a glandular disorder caused by failure of function of the cortex of the adrenal gland and marked by anemia and prostration with brownish skin