articulatio genus vs knee joint

articulatio genus and knee joint both are nouns.

Word	Noun	Adjective	Verb	Adverb
articulatio genus	Yes	No	No	No
knee joint	Yes	No	No	No

As nouns, articulatio genus and knee joint are synonyms defined as:

articulatio genus and knee joint: hinge joint in the human leg connecting the tibia and fibula with the femur and protected in front by the patella

Other synonyms of articulatio genus include genu, human knee, knee.

articulatio genus (noun)	knee joint (noun)
hinge joint in the human leg connecting the tibia and fibula with the femur and protected in front by the patella	hinge joint in the human leg connecting the tibia and fibula with the femur and protected in front by the patella