#acyl_group__acyl  any group or radical of the form RCO- where R is an organic group; "an example of the acyl group is the acetyl group"
  supertype:  chemical_group__group__radical  (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
  subtype:  acetyl_radical__acetyl__acetyl_group__ethanoyl_group__ethanoyl_radical  the organic group of acetic acid (CH3CO-)

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