reg·i·men | \ ˈre-jə-mən also ˈre-zhə- \

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

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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

Here, Bowe and other experts break down how to carefully incorporate the powerhouse ingredient into your regimen to achieve a supernaturally fresh-faced complexion, now and for decades to come. Lauren Valenti, Vogue, "A Beginner's Guide to Retinol—Here's Everything You Need to Know," 12 July 2018 In 1960, muscular men like Charles Atlas and Joe Weider took out ads in comic books that encouraged scrawny men and boys to follow their training regimen to avoid being bullied. USA TODAY, "The biggest exercise fad the year you were born," 12 July 2018 The good news is that vitamin C is incredibly easy to integrate into your skincare regimen (just apply a few drops each morning before your moisturizer) and suitable for all skintypes. Lauren Hubbard, Town & Country, "How to Get Glowing Skin," 25 June 2018 Ebrard, 58, a former deputy foreign secretary, thus becomes a key figure in U.S.-Mexico relations and in the ongoing talks to reshape the regional trade regimen. Patrick J. Mcdonnell,, "Mexico's Lopez Obrador taps longtime loyalist as nominee for top diplomat and invites Trump to inauguration," 6 July 2018 The first daily regimen that worked - 173 morphine milligrams - felt like creamer diluting bitter black coffee. Anchorage Daily News, "Unintended consequences: Inside the fallout of America’s crackdown on opioids," 17 June 2018 No details have been announced in Wisconsin, but hunters are likely to be included in the sampling regimen. Paul A. Smith, Milwaukee Journal Sentinel, "An unexpectedly quiet spring for the usually predictable rough grouse is cause for concern," 16 June 2018 And of those that do ultimately gain approval, often the use for which the FDA approves them (as well as the dosage regimen) will be very different from the expectations during Phase 1 testing. WSJ, "The ‘Right to Try’ Bill Wasn’t Worth Passing," 4 June 2018 Much of the success, and growth, is the result of the Rock Hall's own evolution, tweaks to everything from the mission statement to the building structure and the programming regimen. Gary Graff - Special To,, "Rock & Roll Hall of Fame: A multi-million-dollar gamble that has paid big dividends for Cleveland," 26 Mar. 2018

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.

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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

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Last Updated

24 Sep 2018

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Time Traveler for regimen

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

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More Definitions for regimen



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 \

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

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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

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