cotyloid joint vs articulatio spheroidea

cotyloid joint and articulatio spheroidea both are nouns.

Word	Noun	Adjective	Verb	Adverb
cotyloid joint	Yes	No	No	No
articulatio spheroidea	Yes	No	No	No

As nouns, cotyloid joint and articulatio spheroidea are synonyms defined as:

cotyloid joint and articulatio spheroidea: 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 cotyloid joint include ball-and-socket joint, enarthrodial joint, enarthrosis, spheroid joint.

cotyloid joint (noun)	articulatio spheroidea (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 freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone