diarthrosis vs articulatio synovialis

diarthrosis and articulatio synovialis both are nouns.

Word	Noun	Adjective	Verb	Adverb
diarthrosis	Yes	No	No	No
articulatio synovialis	Yes	No	No	No

As nouns, diarthrosis and articulatio synovialis are synonyms defined as:

diarthrosis and articulatio synovialis: a joint so articulated as to move freely

Other synonyms of diarthrosis include synovial joint.

diarthrosis (noun)	articulatio synovialis (noun)
a joint so articulated as to move freely	a joint so articulated as to move freely