Acidulous
Pronunciation : A*cid"u*lous
Part of Speech : a.
Etymology : [L. acidulus, dim. of acidus. See Acid.]
Definition : Defn: Slightly sour; sub-acid; sourish; as, an acidulous tincture. E. Burke. Acidulous mineral waters, such as contain carbonic anhydride.
Source : Webster's Unabridged Dictionary, 1913