v. [f. L. acidul-us sourish (dim. of acid-us ACID) + -ATE3, as if repr. a L. *acidulā-re. Cf. mod. Fr. aciduler.] To make somewhat acid or sour; to flavor with an acid. Also fig. of the temper. (Rare exc. in pa. pple.)
1732. Arbuthnot, Rules of Diet, 311. Decoctions of mealy substances acidulated.
1747. Wall, in Phil. Trans., XLIV. 588. I acidulated the Liquors with the Vitriolic Acid.
1844. T. J. Graham, Dom. Med., 91. [Vinegar] may be used to acidulate barley-water, or any other ordinary beverage of the patient.
1856. Macaulay, Johnson (1860), 99. Garrick could obtain from one morose cynic scarcely any compliment not acidulated with scorn.