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English definition of “dietitian”

dietitian

noun [C] uk (also dietician)   /ˌdaɪ.əˈtɪʃ.ən/ us  
a person who scientifically studies and gives advice about food and eatingDiets and dietingMedical studies and the people who study them
(Definition of dietitian from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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