Rheumatoid arthritis definition - Arthritis and Arthritic ...Explains arthritis conditions includes symptoms, causes, medications, and treatment. Written and reviewed by a Rheumatologist.CDC - Arthritis - Basics - Definition - Rheumatoid ArthritisRheumatoid Arthritis. Rheumatoid arthritis (RA) causes premature mortality, disability and compromised quality of life in the industrialized and developing world (1).Definition of Rheumatoid Arthritis | eHow.comRheumatoid Arthritis is characterized by a chronic inflammation of the joints. It is an auto-immune disease that can also affect the tissue surrounding the joints as ...