tendosynovitis vs tenosynovitis

tendosynovitis and tenosynovitis both are nouns.

Word	Noun	Adjective	Verb	Adverb
tendosynovitis	Yes	No	No	No
tenosynovitis	Yes	No	No	No

As nouns, tendosynovitis and tenosynovitis are synonyms defined as:

tendosynovitis and tenosynovitis: inflammation of a tendon and its enveloping sheath

Other synonyms of tendosynovitis include tendonous synovitis.

tendosynovitis (noun)	tenosynovitis (noun)
inflammation of a tendon and its enveloping sheath	inflammation of a tendon and its enveloping sheath