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
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Most sports dietitians, including Schwabenbauer, would agree, especially if endurance activities last longer than one hour and in hot or humid conditions. Outside, 24 Mar. 2026 Another 14% transitioned to intensive lifestyle modification programs, working closely with dietitians and exercise specialists. Khloe Quill, FOXNews.com, 18 Mar. 2026 The meal plans were compared against guidance from dietitians. Madeline Holcombe, CNN Money, 16 Mar. 2026 That said, these four high-protein breads are top choices, according to two dietitians. Maggie O'Neill, Verywell Health, 15 Mar. 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 27 Mar. 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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