American Heritage Dictionary of the English Language, 5th Edition
From Latinacidulus (“sourish, acidulous”), diminutive of acidus (“acid, sour”). See acid.
Acidulous Sentence Examples
The sulphurous acid evolved destroys such micro-organisms as may be in the cask, and in addition, as it reduces the supply of oxygen, renders the wine less prone to acidulous fermentation.
in diameter, with a thick minutely tuberculate rind, the inner lining of which is sweet, and a watery acidulous pulp. It has long been cultivated in China and Japan, and was introduced to Europe in 1846 by Mr Fortune, collector for the London Horticultural Society, and shortly after into North America.
The eight mineral springs which form the attraction of the town to strangers belong to the class of saline acidulous chalybeates and contain a considerable proportion of carbonate of lime.