vinegar, the vegetable acid of the chemists. See **Chemistry**, title, *Of acids*.

**ACETUM distillatum**, in chemistry, distilled vinegar.

**ACETUM esuriens**, in chemistry, a distilled vinegar, rectified by the help of verdigris.

**ACETUM radicatum**. Boerhaave thinks the tartarus regeneratus is the acetum radicatum of the old chemists.