Oxford Dictionary English yellow fever nounnoun BrE BrE//ˌjeləʊ ˈfiːvə(r)// ; NAmE NAmE//ˌjeloʊ ˈfiːvər// [uncountable] Ailments and diseases Add to my wordlistjump to other results an infectious tropical disease that makes the skin turn yellow and often causes death See related entries: Ailments and diseasesSee yellow fever in the Oxford Advanced American DictionaryCheck pronunciation: yellow fever oxfordlearnersdictionaries.com