nephrosclerosis vs nephropathy

nephrosclerosis and nephropathy both are nouns.

Word	Noun	Adjective	Verb	Adverb
nephrosclerosis	Yes	No	No	No
nephropathy	Yes	No	No	No

As nouns, nephropathy is a hypernym of nephrosclerosis; that is, nephropathy is a word with a broader meaning than nephrosclerosis:

nephrosclerosis: kidney disease that is usually associated with hypertension; sclerosis of the renal arterioles reduces blood flow that can lead to kidney failure and heart failure
nephropathy: a disease affecting the kidneys

Other hypernyms of nephrosclerosis include kidney disease, nephrosis, renal disorder.

nephrosclerosis (noun)	nephropathy (noun)
kidney disease that is usually associated with hypertension; sclerosis of the renal arterioles reduces blood flow that can lead to kidney failure and heart failure	a disease affecting the kidneys