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.
While fast food may be a convenient and economical option for some, dietitians warn that consumers need to be cognizant of total calorie count and other nutrition information. Kelly McCarthy, ABC News, 21 Apr. 2026 According to registered dietitians, a nut-and-dried fruit combo is ideal. Lynn Andriani, Martha Stewart, 19 Apr. 2026 Connecting with a dietitian or nutritionist can also make a meaningful difference in your child's long-term health. Heidi Cope, Health, 13 Apr. 2026 The detours through the fast-food drive-thrus aggravated my dietitian to no end. Deputy Managing Editor, Los Angeles Times, 10 Apr. 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 Apr. 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

More from Merriam-Webster on dietitian

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster