pyarthrosis

noun
py·​ar·​thro·​sis | \ ˌpī-är-ˈthrō-səs How to pronounce pyarthrosis (audio) \
plural pyarthroses\ -​ˌsēz How to pronounce pyarthroses (audio) \

Medical Definition of pyarthrosis

: the formation or presence of pus within a joint

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