Pronunciation: (dī"i-tet'ik),[key] —adj.Also,di"e•tet'i•cal. 1. pertaining to diet or to regulation of the use of food.
2. prepared or suitable for special diets, esp. those requiring a restricted sugar intake: a jar of dietetic jelly.
—n. dietetics,(used with a sing. v.) the science concerned with the nutritional planning and preparation of foods.