Oxford Dictionary English rheumatic fever nounnoun BrE BrE//ruˌmætɪk ˈfiːvə(r)// ; NAmE NAmE//ruˌmætɪk ˈfiːvər// [uncountable] Add to my wordlistjump to other results a serious disease that causes fever with swelling and pain in the jointsSee rheumatic fever in the Oxford Advanced American DictionaryCheck pronunciation: rheumatic fever oxfordlearnersdictionaries.com