D defs.my
Entry 1 sense Webster, 1913

Acidulate

· A·cid·u·late · IPA /əˈsɪd͡ʒʊ.leɪt/
01 v. t. To make sour or acid in a moderate degree; to sour somewhat.
imp. & p. p. Acidulated; p. pr. & vb. n. Acidulating
  1. 1.
    To make sour or acid in a moderate degree; to sour somewhat.