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creatinine

[ kree-at-n-een, -in ]

noun

, Biochemistry.
  1. a crystalline end product of creatine metabolism, C 4 H 7 N 3 O, occurring in urine, muscle, and blood.


creatinine

/ kriːˈætəˌniːn /

noun

  1. an anhydride of creatine that is abundant in muscle and excreted in the urine
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


creatinine

/ krē-ătn-ēn′,-ĭn /

  1. A compound formed by the metabolism of creatine, found in muscle tissue and blood and normally excreted in the urine as a metabolic waste. Measurement of creatinine levels in the blood is used to evaluate kidney function. Chemical formula: C 4 H 7 N 3 O.


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Word History and Origins

Origin of creatinine1

First recorded in 1850–55; from German Kreatinin, equivalent to kreatin creatine ( def ) + -in -ine 2( def )
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Word History and Origins

Origin of creatinine1

C19: from German Kreatinin, from Kreatin creatine + -in -ine ²
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Compare Meanings

How does creatinine compare to similar and commonly confused words? Explore the most common comparisons:

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Example Sentences

Creatinine is plugged into the formula along with age, sex and race.

Creatine and creatinine also seem to lessen in amount, but of the extent of this change I am not as yet fully informed.

The creatinine was estimated in two cases and was found to be 2.0 mg.

The precipitate contains the picrate of trimethylenediamine, mixed with the picrates of cadaverine and creatinine.

Foremost among them are uric acid, creatinine, and the coloring-matter.

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creatine phosphatecreation