Creatinine Definition
krē-ătn-ēn, -ĭn
noun
The anhydride of creatine, C4H7N3O, found in blood, muscle, and esp. urine, where measurement of its excretion is used to evaluate kidney function.
Webster's New World
(biochemistry) A heterocyclic amine 2-amino-1-methyl-5H-imidazol-4-one formed by the metabolism of creatine.
Wiktionary
Origin of Creatinine
creatin(e) –ine
From American Heritage Dictionary of the English Language, 5th Edition
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