acetylated

/AH0 S IY0 T AH0 L EY0 T IH0 D/
verb
  1. 1

    To react with acetic acid or one of its derivatives; to introduce one or more acetyl groups into a substance

adjective
  1. 1

    That has been reacted with acetic acid (or one of its derivatives), or has been modified by the attachment of acetyl groups.

Source: https://en.wiktionary.org/wiki/acetylate, https://en.wiktionary.org/wiki/acetylated