creatine

noun

cre·​a·​tine ˈkrē-ə-ˌtēn How to pronounce creatine (audio)
-tᵊn
: a white crystalline nitrogenous substance C4H9N3O2 found especially in the muscles of vertebrates either free or as phosphocreatine
also : a synthetic usually hydrated form of creatine taken especially as a dietary supplement

Examples of creatine in a Sentence

Recent Examples on the Web
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Taking creatine may also make therapy or antidepressants more effective; in one study, women taking an antidepressant plus creatine had twice the remission rate than those taking the medication with a placebo. Cindy Kuzma, SELF, 28 May 2025 They may not be sold next to standard supplements like magnesium and creatine in stores, but they’re practically being put on the same shelf by the upper echelons of Hollywood. Kaleigh Werner, Footwear News, 22 May 2025 Taking creatine supplements boosts brain creatine stores, which may positively affect cognitive function and memory. Jillian Kubala, Health, 29 Apr. 2025 Both brands advise taking a five-gram scoop of creatine a day. Devinder Bains, Glamour, 16 May 2025 See All Example Sentences for creatine

Word History

Etymology

French créatine, from Greek kreat-, kreas flesh — more at raw

First Known Use

1840, in the meaning defined above

Time Traveler
The first known use of creatine was in 1840

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Cite this Entry

“Creatine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/creatine. Accessed 5 Jun. 2025.

Medical Definition

creatine

noun
: a white crystalline nitrogenous substance C4H9N3O2 found especially in vertebrate muscle either free or as phosphocreatine

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