[a. Fr. acidité (16th c.); or of its prototype, L. aciditāt-em, n. of quality f. acid-us sour: see ACID.] The quality or state of being acid or sour; sourness, tartness, sharpness to the taste.
1620. Venner, Via Recta, vi. 95. Sugar correcteth their acidity.
1656. B. Valentine, Repet. Former Writings, 11. There is an acetum made of antimony, of an acidity as other acetums are.
1681. Worlidge, Syst. Agric., 9. The heat of the fire evaporating, and consuming the Acidity of the Earth.
1732. Arbuthnot, Rules of Diet, 262. No animal Substance produceth Acidity, except Milk.
1748. Hartley, Observ. on Man, I. i. § 3. 98. Acidities, and other Irritations in the Bowels.
1863. Mitchell, Farm of Edgewood, 143. I count upon its brilliant colouring, and its piquant acidity, in the first days of August.
