: the presence of excess ketone bodies in the urine
Patients with type 1 or type 2 diabetes treated with insulin need to check their urine for ketones … . If ketonuria is present it is because there is not enough insulin in the blood.Samantha Rosindale
compare ketonemia

Word History

First Known Use

1907, in the meaning defined above

Time Traveler
The first known use of ketonuria was in 1907

Dictionary Entries Near ketonuria

Cite this Entry

“Ketonuria.” Dictionary, Merriam-Webster, Accessed 25 May. 2024.

Medical Definition


ke·​ton·​uria ˌkēt-ə-ˈn(y)u̇r-ē-ə How to pronounce ketonuria (audio)
: the presence of excess ketone bodies in the urine in conditions (as diabetes mellitus and starvation acidosis) involving reduced or disturbed carbohydrate metabolism

called also acetonuria

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