[mass noun]any disease marked by inflammation and pain in the joints, muscles, or fibrous tissue, especially rheumatoid arthritis 风湿病(尤指类风湿性关节炎)
语源
late 17th cent.: from French rhumatisme, or via Latin from Greek rheumatismos, from rheumatizein 'to snuffle', from rheuma 'stream': the disease was originally supposed to be caused by the internal flow of 'watery' humours