osteoarthropathy

noun
os·​teo·​ar·​throp·​a·​thy | \ -är-ˈthräp-ə-thē How to pronounce osteoarthropathy (audio) \
plural osteoarthropathies

Medical Definition of osteoarthropathy

: a disease of joints or bones specifically : hypertrophic osteoarthropathy

called also acropachy