knee joint vs articulatio genus

knee joint and articulatio genus both are nouns.

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

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

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

Other synonyms of knee joint include genu, human knee, knee.

knee joint (noun)	articulatio genus (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