Definition of dietetics noun from the Oxford Advanced Learner's Dictionary

 

dietetics

 noun
noun
BrE BrE//ˌdaɪəˈtetɪks//
 
; NAmE NAmE//ˌdaɪəˈtetɪks//
 
[uncountable]
 
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the scientific study of diet and healthy eating
See the Oxford Advanced American Dictionary entry: dietetics