reg·​i·​men | \ ˈre-jə-mən also ˈre-zhə- How to pronounce regimen (audio) \

Definition of regimen

1a : a systematic plan (as of diet, therapy, or medication) especially when designed to improve and maintain the health of a patient
b : a regular course of action and especially of strenuous training the daily regimen of athletes

Keep scrolling for more

Did You Know?

We borrowed "regimen" straight from Latin, spelling and all - but in Latin, the word simply meant "rule" or "government." In English, it usually refers to a system of rules or guidelines, often for living a healthy life or taking a regular dose of exercise. The Latin regimen derives from another Latin word, the verb "regere," which means "to lead straight" or "to rule." If you trace straight back from "regere," you'll find that "regimen" has plenty of lexical kin, including "correct," "erect," "region," "rule," and "surge." If you are using the "training" sense of "regimen," be careful not to confuse the word with "regiment," another "regere" descendant, which is used for a military unit.

Examples of regimen in a Sentence

with the start of the new year, a new party will have regimen over the nation and, hopefully, bring some much-needed change
Recent Examples on the Web Some of the posts associated with Frey's Iron March username are relatively benign in nature, discussing Star Wars, his exercise regimen, his preference for classical music, and his experience transitioning from military to civilian life. Holly V. Hays, Indianapolis Star, "Ex-Marion County Jail II officer suspended from Nevada facility after neo-Nazi posts found," 10 Jan. 2020 Like any comprehensive athletic regimen, the Hypervolt is designed for use during warmups and cooldowns—both to activate muscles and to relax them. Popular Science, "Four handheld power massagers for athletes and desk workers," 6 Jan. 2020 One approach is to use flexible dose regimens, which have successfully expanded the number of patients who can benefit from Yervoy. Richard Ghalie, STAT, "Improving the next generation of drugs through patient-centric design for clinical trials," 26 Dec. 2019 With early diagnosis and adherence to a simple, daily medication regimen, people with HIV can live as long as anyone else and have no risk of transmission. Keren Landman, Quartz, "How community support is helping black gay men with HIV thrive," 1 Dec. 2019 Krebs is leading a large trial, also funded by PCORI, in which 500 U.S. veterans will work by phone with a pharmacist to optimize the safety and efficacy of their drug regimen. Claudia Wallis, Scientific American, "How to Break the Bonds of Opioids," 20 Dec. 2019 Cameron Douglas kept journals and wrote poetry during his incarceration, as a kind of mental regimen to get himself through each day. New York Times, "The Life of Cameron Douglas, From Privilege to Prison and Back," 19 Oct. 2019 Another component of my mental health regimen has been going to therapy regularly, a different kind of workout. NBC News, "Karine Jean-Pierre: It's time to talk about mental health, including my own," 11 Oct. 2019 Instead, the team believes that eating grass is still part of health regimen, just one that most companion animals don’t need to engage in today. Jason Daley, Smithsonian, "Researchers Think They Know Why Cats Eat Grass," 12 Aug. 2019

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

See More

First Known Use of regimen

14th century, in the meaning defined at sense 1a

History and Etymology for regimen

Middle English, from Medieval Latin regimin-, regimen position of authority, direction, set of rules, from Latin, steering, control, from regere to direct

Keep scrolling for more

Learn More about regimen

Time Traveler for regimen

Time Traveler

The first known use of regimen was in the 14th century

See more words from the same century

Listen to Our Podcast about regimen

Statistics for regimen

Last Updated

15 Jan 2020

Cite this Entry

“Regimen.” The Dictionary, Merriam-Webster Inc., Accessed 25 January 2020.

Keep scrolling for more

More Definitions for regimen


How to pronounce regimen (audio)

English Language Learners Definition of regimen

: a plan or set of rules about food, exercise, etc., to make someone become or stay healthy


reg·​i·​men | \ ˈre-jə-mən How to pronounce regimen (audio) \

Kids Definition of regimen

: a systematic course of action a daily exercise regimen


reg·​i·​men | \ ˈrej-ə-mən also ˈrezh-ə- \

Medical Definition of regimen

: a systematic plan (as of diet, therapy, or medication) especially when designed to improve and maintain the health of a patient

Keep scrolling for more

More from Merriam-Webster on regimen

Thesaurus: All synonyms and antonyms for regimen

Spanish Central: Translation of regimen

Nglish: Translation of regimen for Spanish Speakers

Britannica English: Translation of regimen for Arabic Speakers

Comments on regimen

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


dull or mediocre

Get Word of the Day daily email!

Test Your Vocabulary

Intact Latin Quiz

  • roman tablet
  • What did focus mean in Latin?
Spell It

Can you spell these 10 commonly misspelled words?


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!