acidulate

/ษ™หˆsษชdส’สŠ.leษชt/

IPA: /AH0 S IH1 JH AH0 L EY0 T/

verb
  1. 1

    To make slightly or moderately acid; to acidify.

  2. 2

    To make sour in a moderate degree; to sour somewhat.

  3. 3

    To use an acidic catalyst, with the chemical change being emphasised over the importance of the change in pH. Used in the processing of biodiesel co-products.

Source: https://en.wiktionary.org/wiki/acidulate