enarthrosis vs ball-and-socket joint

enarthrosis and ball-and-socket joint both are nouns.

Word	Noun	Adjective	Verb	Adverb
enarthrosis	Yes	No	No	No
ball-and-socket joint	Yes	No	No	No

As nouns, enarthrosis and ball-and-socket joint are synonyms defined as:

enarthrosis and ball-and-socket joint: a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone

Other synonyms of enarthrosis include articulatio spheroidea, cotyloid joint, enarthrodial joint, spheroid joint.

enarthrosis (noun)	ball-and-socket joint (noun)
a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone	a joint that can rotate within a socket
	a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone