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
Creatine supplements that work and don’t taste chalky This Jolly Rancher Cherry creatine delivers 5 grams per serving (the standard effective dose backed by research).
—
Bestreviews, Mercury News, 10 Feb. 2026
Adding a creatine monohydrate supplement to your routine is the most effective way to increase body and muscle stores of creatine to reap creatine’s health benefits.
—Amy Brownstein, Verywell Health, 5 Feb. 2026
Foods rich in protein, creatine, omega-3s, and antioxidants may help reduce muscle soreness, improve recovery, and enhance performance.
—Merve Ceylan, Health, 3 Feb. 2026
The beta-alanine also provides a mild boost, and creatine supports strength gains over time.
—Bestreviews, Chicago Tribune, 3 Feb. 2026
See All Example Sentences for creatine
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Bestreviews, Mercury News, 10 Feb. 2026
Adding a creatine monohydrate supplement to your routine is the most effective way to increase body and muscle stores of creatine to reap creatine’s health benefits.
—Amy Brownstein, Verywell Health, 5 Feb. 2026
Foods rich in protein, creatine, omega-3s, and antioxidants may help reduce muscle soreness, improve recovery, and enhance performance.
—Merve Ceylan, Health, 3 Feb. 2026
The beta-alanine also provides a mild boost, and creatine supports strength gains over time.
—Bestreviews, Chicago Tribune, 3 Feb. 2026
See All Example Sentences for creatine
Cite this Entry
“Creatine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/creatine. Accessed 14 Feb. 2026.
Copy CitationMedical 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
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