acetoacetic acid ac·e·to·a·ce·tic acid (ās'ĭ-tō-ə-sē'tĭk, ə-sē'tō-)
n.
A ketone body that is formed in excessive amounts and excreted in the urine of individuals suffering from starvation or diabetes. Also called diacetic acid.
diacetic acid di·a·ce·tic acid (dī'ə-sē'tĭk)
n.
See acetoacetic acid.