Acidulate \A*cid"u*late\, v. t. [imp. & p. p. {Acidulated}; p. pr. & vb. n. {Acidulating}.] [Cf. F. aciduler. See {Acidulous}.] To make sour or acid in a moderate degree; to sour somewhat. --Arbuthnot.
acidulate v : make sour or more sour [syn: {sour}, {acidify}, {acetify}] [ant: {sweeten}]