acetoacetic acid acetoacetic acid /əˌsiːtoʊəˈsiːtɪk ˈæsɪd/

noun

1. Unstable acid found in abnormal amounts in the blood and urine in some cases of impaired metabolism (as diabetes mellitus or starvation)  ( acetoacetic acid )
   unstable acid found in abnormal amounts in the blood and urine in some cases of impaired metabolism (as diabetes mellitus or starvation)