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

His youngest son has a rare brain disease called creatine transporter deficiency. —Jazz Tangcay, Variety, 5 June 2025

Video Does creatine boost athletic performance? Most studies on creatine supplements, which typically contain a form of the compound called creatine monohydrate, have evaluated their effects on athletic performance and muscle growth, Dr. Antonio said. —Melinda Wenner Moyer, New York Times, 29 May 2025

Myprotein also offers creatine in the form of tablets and gummies. —Devinder Bains, Glamour, 16 May 2025

Men, by and large, are overloading on protein, creatine, and other muscle-building supplements. —José Criales-Unzueta, Vogue, 12 May 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