- any caliph of the North African dynasty, 909–1171, claiming descent from Fatima and Ali.
- any descendant of Fatima and Ali.
- a member of the Muslim dynasty, descended from Fatima, daughter of Mohammed, and Ali, her husband, that ruled over North Africa and parts of Egypt and Syria (909–1171)
- Also called: Fatimite (ˈfætɪˌmaɪt) a descendant of Fatima and Ali
Arab dynasty that ruled 908-1171 in North Africa and sometimes Egypt and Syria, from Fatima, daughter of Muhammad by his first wife, Khadija; Fatima married Ali, and from them the dynasty claimed descent.