Words

acetyl

acetyl

(ˈæsɪˌtaɪlPronunciation for acetyl, əˈsiːtaɪlPronunciation for acetyl)
  noun
    (modifier) of, consisting of, or containing the monovalent group CH3CO- ■ acetyl group or radical
  [C19: from acet(ic) + -yl]

acetylic (ˌæsɪˈtɪlɪkPronunciation for acetylic)
adjective