periarthritis

noun
peri·​ar·​thri·​tis | \ -är-ˈthrīt-əs How to pronounce periarthritis (audio) \
plural periarthritides\ -​ˈthrit-​ə-​ˌdēz How to pronounce periarthritides (audio) \

Medical Definition of periarthritis

: inflammation of the structures (as the muscles, tendons, and bursa of the shoulder) around a joint