noun. An organic group having the general formula RCO-, derived from an organic acid.

noun. A name introduced by Liebermann to designate an acid radical such as acetyl, C₂H₃O.

noun. An acid radical, as acetyl, malonyl, or benzoyl. An acyl radical can be depicted as R-CO-, where -CO- is the carbonyl group, and R is the group that characterizes the acyl moiety.

noun. Any of class of organic radicals, RCO-, formed by the removal of a hydroxyl group from a carboxylic acid.

noun. any group or radical of the form RCO- where R is an organic group

"The preparation of pentagalloyl glucose has proved this compound to be nearly identical with tannin obtained from galls (_tannin_); a few other natural tannins belong to this type which Fischer terms acyl compounds of sugar with hydroxybenzoic acids."

acyl anhydride  acyl halide  acylation  acyloxy  

chemical group  group  radical  

acetyl  acetyl group  acetyl radical  ethanoyl group  ethanoyl radical  

alkoxy  alkyl  amino  amino-acid  carbonyl