rheumatism /ˈɹu.məˌtɪz.əm/ noun2 •Any disorder of the muscles, tendons, joints, bones, nerves, characterized by pain, discomfort and disability.And then as to your scurvys, and gouts, rheumatisms, consumptions, coughs and catarrhs, tar-vvater and turpentine vvill make you as sound as a roach. — 1763 •Atrophic arthritis, rheumatoid arthritis formsrheumatisms