creatinine

noun

cre·​at·​i·​nine krē-ˈa-tə-ˌnēn How to pronounce creatinine (audio)
-ən
: a white crystalline strongly basic compound C4H7N3O formed from creatine and found especially in muscle, blood, and urine

Examples of creatinine in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But metabolites—like lactate, creatinine, and glucose—shouldn’t be too much harder. IEEE Spectrum, 22 Oct. 2014 Higher concentrations of creatinine and urea indicate an unhealthy kidney struggling to clear waste products from the body. IEEE Spectrum, 22 Oct. 2014 Liquid creatine supplements should be avoided because creatine is broken down to creatinine in water. Jennifer Lefton, Ms, Rd/n, Cnsc, Fand, Verywell Health, 24 Oct. 2024 Healthcare providers determine the stage of AKI based on serum creatinine levels and urine output. Lindsay Curtis, Health, 13 Oct. 2024 See All Example Sentences for creatinine

Word History

Etymology

German Kreatinin, from Kreatin creatine

First Known Use

1851, in the meaning defined above

Time Traveler
The first known use of creatinine was in 1851

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Cite this Entry

“Creatinine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/creatinine. Accessed 5 Mar. 2025.

Medical Definition

creatinine

noun
cre·​at·​i·​nine krē-ˈat-ᵊn-ˌēn, -ᵊn-ən How to pronounce creatinine (audio)
: a white crystalline strongly basic compound C4H7N3O formed from creatine and found especially in muscle, blood, and urine

More from Merriam-Webster on creatinine

Last Updated: - Updated example sentences
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