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

Keeping your muscles exposed to this tension also causes a build-up of various metabolites like lactate and creatine. —Sherri Gordon, Health, 18 Sep. 2025

Whipping caffeine, creatine, peptides, and an Ayurvedic Haritaki fruit into a weightless serum, Champo’s Pitta Growth is a great growth solution for fine hair types. —Kiana Murden, Vogue, 12 Sep. 2025

The body naturally produces creatine from the synthesis of three of the 20 main amino acids. —Alexa Mikhail, Flow Space, 8 Sep. 2025

While your body naturally produces some creatine, can maximizing on it really deliver the benefits influencers are claiming? —Brittney Melton, NPR, 5 Sep. 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