Home/Topics/Biological & Chemical Substances/creatinine Biological & Chemical Substances Kidneys & Urinary System creatinine Listen Save Share Print Meaning of creatinine: A compound that is excreted from the body in urine. Definition of creatinine A compound that is excreted from the body in urine. Creatinine levels are measured to monitor kidney function. Written and maintained by James Murray · Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations. Keep exploringRelated termsMore in Biological & Chemical Substances → Diseases & Disorders diabetes One word covering two unrelated illnesses, though on its own it is almost always taken to mean the sugar one. Read definition → Diseases & Disorders multiple sclerosis Scattered patches of damage explain the scattered symptoms, since what a person notices depends entirely on which pathway has been hit. Read definition → Medications & Pharmacology tamsulosin Relief arrives in days rather than months, because the drug changes muscle tone instead of shrinking the gland causing the obstruction. Read definition → Diseases & Disorders Denys-Drash syndrome Denys-Drash syndrome is a rare genetic disorder combining early kidney failure, abnormal sexual development, and a high risk of Wilms tumor. Read definition →
Diseases & Disorders diabetes One word covering two unrelated illnesses, though on its own it is almost always taken to mean the sugar one. Read definition →
Diseases & Disorders multiple sclerosis Scattered patches of damage explain the scattered symptoms, since what a person notices depends entirely on which pathway has been hit. Read definition →
Medications & Pharmacology tamsulosin Relief arrives in days rather than months, because the drug changes muscle tone instead of shrinking the gland causing the obstruction. Read definition →
Diseases & Disorders Denys-Drash syndrome Denys-Drash syndrome is a rare genetic disorder combining early kidney failure, abnormal sexual development, and a high risk of Wilms tumor. Read definition →