Definition from Wiktionary, the free dictionary
- IPA: /ɑː(ɹ)θˈɹaɪtɪs/
arthritis (plural arthritides)
- Inflammation of a joint or joints causing pain and/or disability, swelling and stiffness, and due to various causes such as infection, trauma, degenerative changes or metabolic disorders.
Derived terms 
inflammation of a joint