atherosclerosis vs coronary artery disease

atherosclerosis and coronary artery disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
atherosclerosis	Yes	No	No	No
coronary artery disease	Yes	No	No	No

As nouns, atherosclerosis and coronary artery disease are synonyms defined as:

atherosclerosis and coronary artery disease: a stage of arteriosclerosis involving fatty deposits (atheromas) inside the arterial walls, thus narrowing the arteries

atherosclerosis (noun)	coronary artery disease (noun)
a stage of arteriosclerosis involving fatty deposits (atheromas) inside the arterial walls, thus narrowing the arteries	a stage of arteriosclerosis involving fatty deposits (atheromas) inside the arterial walls, thus narrowing the arteries