WordReference Random House Unabridged Dictionary of American English © 2026
a•ce•to•a•ce′tic ac′id
(ə sē′tō ə sē′tik, -ə set′ik, as′i tō-),USA pronunciation [Chem.]
- Chemistrya colorless, oily liquid, C4H6O3, soluble in water, alcohol, and ether: used in synthetic organic chemistry. Also called diacetic acid.
- aceto- + acetic 1895–1900
'acetoacetic acid' also found in these entries (note: many are not synonyms or translations):