DIETETIC Meaning of DIETETIC in English dietetic BrE AmE ˌda ɪ ‿ə ˈtet ɪk ◂ ɪ- AmE \ -ˈtet̬-▷ dietetic|ally ə l‿i▷ dietetic|s s Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012