The Collaborative International Dictionary
Arthrosis
Arthrosis \Ar*thro"sis\, n. [NL., fr. Gr. ?, fr. 'a`rqron joint.] (Anat.) Articulation.
Wiktionary
arthrosis
n. 1 Any articulation or joint between bones 2 (context: pathology) Any degenerative disease of such a joint e.g. osteoarthritis