tenosynovitis vs tendosynovitis

tenosynovitis and tendosynovitis both are nouns.

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

As nouns, tenosynovitis and tendosynovitis are synonyms defined as:

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

Other synonyms of tenosynovitis include tendonous synovitis.

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