kwashiorkor Syllabification: (kwash·i·or·kor)Pronunciation: /ˌkwäSHēˈôrkôr, -kər/Definition of kwashiorkor noun a form of malnutrition caused by protein deficiency in the diet, typically affecting young children in the tropics. Origin: 1930s: a local word in Ghanakwashiorkor in other Oxford dictionaries Definition of kwashiorkor in the British & World English dictionary