cre·​at·​i·​nine | \ krē-ˈa-tə-ˌnēn How to pronounce creatinine (audio) , -ən \

Definition of creatinine

: 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 Black patients’ supposed creatinine levels below what’s actually measured. Sharon Begley, STAT, "Racial bias skews algorithms widely used to guide care from heart surgery to birth, study finds," 17 June 2020 This is determined by a blood test for creatinine and glomerular filtration rate (GFR). Howard Lewine,, "Stay on Coumadin or switch to a new blood thinner?," 14 Aug. 2019 The new algorithm also analyzed advanced biomarkers such as the levels of creatinine and bilirubin in the blood, which can offer clues about underlying infection. Ian Haydon,, "Working to save lives, Philly physicians find way to help patients confront death," 26 June 2018 Compared to those who remained unemployed, those who moved into poorer-quality jobs had higher markers of inflammation and a lower creatinine clearance rate, a measure of how well the kidneys are functioning. Olga Khazan, The Atlantic, "Is Any Job Really Better Than No Job?," 25 Aug. 2017 Furthermore, their injuries, based on creatinine levels, tended to be more severe. Gretchen Reynolds, New York Times, "Bring On the Exercise, Hold the Painkillers," 5 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'creatinine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of creatinine

1851, in the meaning defined above

History and Etymology for creatinine

German Kreatinin, from Kreatin creatine

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Time Traveler for creatinine

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The first known use of creatinine was in 1851

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Statistics for creatinine

Last Updated

26 Jun 2020

Cite this Entry

“Creatinine.” Dictionary, Merriam-Webster, Accessed 12 Jul. 2020.

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More Definitions for creatinine


cre·​at·​i·​nine | \ krē-ˈat-ᵊn-ˌēn, -ᵊn-ən How to pronounce creatinine (audio) \

Medical Definition of creatinine

: a white crystalline strongly basic compound C4H7N3O formed from creatine and found especially in muscle, blood, and urine

More from Merriam-Webster on creatinine Encyclopedia article about creatinine

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