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.
Soy lecithin emulsifies ingredients, such as oil and water, to blend the salad dressing into a smooth consistency, Judy Simon, a clinical dietitian nutritionist at the University of Washington, previously told USA TODAY. James Powel, USA Today, 15 June 2026 While some foods with that label may be worth buying, dietitians say others aren't necessarily worth the extra cost. Lynn Andriani, Martha Stewart, 14 June 2026 Here are the five most common mistakes people make, according to dietitians. Ryan Brennan, Fort Worth Star-Telegram, 13 June 2026 Dexcom also announced a deal to acquire Nutrisense, an app that helps users analyze data coming off CGMs and offers access to dietitians. Mario Aguilar, STAT, 9 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 19 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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