polyarthritis

noun
poly·​ar·​thri·​tis | \ -är-ˈthrīt-əs How to pronounce polyarthritis (audio) \
plural polyarthritides\ -​ˈthrit-​ə-​ˌdēz How to pronounce polyarthritides (audio) \

Medical Definition of polyarthritis

: arthritis involving two or more joints

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