Dietitian Definition
 dīətizhən 
  dietitians
  
    noun
  
 
    dietitians
  
An expert in dietetics; specialist in planning meals or diets.
 Webster's New World 
A person specializing in dietetics.
 American Heritage Medicine 
Synonyms: 
  
- nutritionist
- dietician
Other Word Forms of Dietitian
Noun
Singular:
 dietitianPlural:
 dietitiansOrigin of Dietitian
- diet -itian (alteration of –ician) - From American Heritage Dictionary of the English Language, 5th Edition 
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