• synonyms


or di·e·ti·cian

[dahy-i-tish-uh n]
  1. a person who is an expert in nutrition or dietetics.
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Origin of dietitian

1840–50; diet1 + -itian; see -ician
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for dietitian

Historical Examples

  • It is this fact, from the point of view of the dietitian, that commends vegetable candy so highly.

    Candy-Making Revolutionized

    Mary Elizabeth Hall

  • There are many problems that still call for an answer by the chemist and dietitian.

  • In hospitals this is passed to the dietitian, who carries out the directions laid down by the physician.

    Dietetics for Nurses

    Fairfax T. Proudfit

Word Origin and History for dietitian


see dietician.

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Online Etymology Dictionary, © 2010 Douglas Harper

dietitian in Medicine


  1. A person specializing in dietetics.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.