noun
arthritis
ar-THRY-tis/ɑːrˈθraɪtɪs/
Inflammation of the joints causing pain and stiffness.
The joint model contrasts healthy tissue with arthritis.

Etymology
Greek arthritis was a feminine adjective meaning “pertaining to joints,” paired with an understood word for “disease.” English uses that disease name specifically for joint inflammation.
In context
there is pain in the joints that can be swelling in the joints there's stiffness in the joints and and those are basically the symptoms that the patient with rheumatoid arthritis complains of
More examples
- The patient discussed arthritis with the clinician.
- The study examined arthritis.
- She researched different forms of arthritis.
Forms
arthritis
arthritic adjective — affected by joint inflammation
Similar words
- arthralgia
- Joint pain without necessarily inflammation.
- rheumatism
- A broad older label for painful joint or tissue conditions.