hemodialyzer vs artificial kidney

hemodialyzer and artificial kidney both are nouns.

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

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

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

hemodialyzer (noun)	artificial kidney (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