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

The Extreme formula doubles down on everything — 300 milligrams of caffeine for serious energy, higher beta-alanine for maximum endurance support and two types of patented creatine for enhanced strength gains. —Bestreviews, Chicago Tribune, 3 Feb. 2026

Still others are looking for collagen, prebiotics, creatine, or adaptogens. —Oisín Hanrahan, Fortune, 28 Jan. 2026

Magnesium, creatine and electrolyte gummies are formulated to deliver meaningful active levels while remaining palatable enough to fit in someone’s bag or gym locker. —Wyles Daniel, Sacbee.com, 27 Jan. 2026

Most recently, the brand introduced muscle-boosting creatine gummies in January. —Noor Lobad, Footwear News, 27 Jan. 2026

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