Ace'tous. adj. [from acetum, vinegar, Lat.] Having the quality of vinegar, sour.
Raisins, which consist chiefly of the juice of grapes, inspissated in the skins or husks by the avolation of the superfluous moisture through their pores, being distilled in a retort, did not afford any vinous, but rather an acetous spirit. Boyle of Spirits.