风湿性关节炎 fēngshīxìngguānjiéyán rheumatoid arthritis Origin Definitions Defs Strokes Stroke Words Sentences Sents 类风湿性关节炎 lèifēngshīxìngguānjiéyán rheumatoid arthritis a chronic autoimmune disease that causes inflammation, pain, and swelling in the joints; often affects the small joints of the limbs symmetrically and can lead to disability