artificial kidney vs hemodialyzer

artificial kidney and hemodialyzer both are nouns.

Word	Noun	Adjective	Verb	Adverb
artificial kidney	Yes	No	No	No
hemodialyzer	Yes	No	No	No

As nouns, artificial kidney and hemodialyzer are synonyms defined as:

artificial kidney and hemodialyzer: a machine that uses dialysis to remove impurities and waste products from the bloodstream before returning the blood to the patient's body

artificial kidney (noun)	hemodialyzer (noun)
a machine that uses dialysis to remove impurities and waste products from the bloodstream before returning the blood to the patient's body	a machine that uses dialysis to remove impurities and waste products from the bloodstream before returning the blood to the patient's body