synovial joint vs articulatio synovialis

synovial joint and articulatio synovialis both are nouns.

Word	Noun	Adjective	Verb	Adverb
synovial joint	Yes	No	No	No
articulatio synovialis	Yes	No	No	No

As nouns, synovial joint and articulatio synovialis are synonyms defined as:

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

Other synonyms of synovial joint include diarthrosis.

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