- a crystalline end product of creatine metabolism, C4H7N3O, occurring in urine, muscle, and blood.
Origin of creatinine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for creatinine
The creatinine was estimated in two cases and was found to be 2.0 mg.Scurvy Past and Present
Alfred Fabian Hess
Foremost among them are uric acid, creatinine, and the coloring-matter.Schenk's Theory: The Determination of Sex
Samuel Leopold Schenk
The precipitate contains the picrate of trimethylenediamine, mixed with the picrates of cadaverine and creatinine.Poisons: Their Effects and Detection
Alexander Wynter Blyth
Creatine and creatinine also seem to lessen in amount, but of the extent of this change I am not as yet fully informed.Fat and Blood
S. Weir Mitchell
- an anhydride of creatine that is abundant in muscle and excreted in the urine
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
Word Origin and History for creatinine
Online Etymology Dictionary, © 2010 Douglas Harper
- A creatine anhydride formed by the metabolism of creatine and found in muscle tissue and blood and normally excreted in the urine as metabolic waste.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- 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.