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creatinine

[ kree-at-n-een, -in ]
/ kriˈæt nˌin, -ɪn /
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noun Biochemistry.
a crystalline end product of creatine metabolism, C4H7N3O, occurring in urine, muscle, and blood.

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Origin of creatinine

1850–55; <German Kreatinin, equivalent to kreatincreatine + -in-ine2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use creatinine in a sentence

British Dictionary definitions for creatinine

creatinine
/ (kriːˈætəˌniːn) /

noun
an anhydride of creatine that is abundant in muscle and excreted in the urine

Word Origin for creatinine

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

Scientific definitions for creatinine

creatinine
[ krē-ătn-ēn′, -ĭn ]

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: C4H7N3O.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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