di·​e·​tet·​ics | \ ˌdī-ə-ˈte-tiks How to pronounce dietetics (audio) \

Definition of dietetics

: the science or art of applying the principles of nutrition to the diet

Examples of dietetics in a Sentence

Recent Examples on the Web On June 3, Ibitoye shared a series of slides on Instagram that included ways to take action against prejudice in the dietetics industry. Christina Oehler, Health.com, "10 Wellness Warriors on the Frontlines of Black Lives Matter," 4 June 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dietetics.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of dietetics

1799, in the meaning defined above

Keep scrolling for more

Learn More about dietetics

Time Traveler for dietetics

Time Traveler

The first known use of dietetics was in 1799

See more words from the same year

Statistics for dietetics

Cite this Entry

“Dietetics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dietetics. Accessed 27 Sep. 2020.

Keep scrolling for more

More Definitions for dietetics


noun plural but singular or plural in construction
di·​etet·​ics | \ -ˈtet-iks How to pronounce dietetics (audio) \

Medical Definition of dietetics

: the science or art of applying the principles of nutrition to feeding

Comments on dietetics

What made you want to look up dietetics? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Challenging Vocabulary Quiz Returns!

  • stylized drawing of woman pole vaulting across gap to get trophy
  • Which is a synonym of fuliginous?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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