creatine

noun

cre·​a·​tine ˈkrē-ə-ˌtēn 

-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

Advertisement But studies show that when vegetarians significantly up their creatine intake with a supplement, markers of short-term memory improve. —Matt Fuchs, Time, 2 Sep. 2025

While that is not a high amount of creatine, eating shrimp can contribute to your daily creatine intake. —Lana Barhum, Verywell Health, 28 Aug. 2025

While the effects of creatine supplementation on athletic performance are well-documented, its effects on mental performance are still emerging. —Boutayna Chokrane, Wired News, 13 Aug. 2025

Rather, research shows that both forms of creatine have similar bioavailability, meaning the body can easily absorb and use them.9 Creatine nitrate is a newer form of creatine, so it has not been as extensively studied as creatine monohydrate. —Emmanuella Ogbonna, Health, 12 Aug. 2025

Word History

Etymology

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

First Known Use

1840, in the meaning defined above

Phrases Containing creatine

• creatine kinase
• creatine phosphate

Rhymes for creatine

• aten
• clayton
• satan
• statin
• straighten

Medical Definition

creatine

noun

cre·​atine ˈkrē-ə-ˌtēn, -ət-ᵊn 

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