dietitian

noun

di·​e·​ti·​tian ˌdī-ə-ˈti-shən How to pronounce dietitian (audio)
variants or less commonly dietician
: a specialist in dietetics

Examples of dietitian in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Working with a dietitian or nutritionist to improve your eating habits. Heidi Moawad, Verywell Health, 3 June 2026 This article is meant to inform the general reader and is not a substitute for medical advice from a physician or nutritional advice from a dietitian and/or nutritionist. Samantha Agate, Fort Worth Star-Telegram, 2 June 2026 This article is meant to inform the general reader and is not a substitute for medical advice from a physician or nutritional advice from a dietitian and/or nutritionist. Samantha Agate, Kansas City Star, 1 June 2026 The department claimed that all detainees are given three meals daily—evaluated by certified dietitians—as well as clean water, clothes, bedding, and toiletries. Chad De Guzman, Time, 1 June 2026 See All Example Sentences for dietitian

Word History

Etymology

dietitian irregular from diet entry 1 + -ician

First Known Use

circa 1846, in the meaning defined above

Time Traveler
The first known use of dietitian was circa 1846

Browse Nearby Words

Cite this Entry

“Dietitian.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dietitian. Accessed 6 Jun. 2026.

Kids Definition

dietitian

noun
di·​eti·​tian
variants or dietician
ˌdī-ə-ˈtish-ən
: a specialist in dietetics

Medical Definition

dietitian

noun
di·​eti·​tian
variants or dietician
: a specialist in dietetics

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