Radical derived from an acid (4)

• Organic group manufactured from clay …
• Any group or radical of the form RCO- where R is an organic group
• Radical derived from an acid
• Chemistry radical
• Acid derivative

WordNet Word definitions in WordNet
n. any group or radical of the form RCO- where R is an organic group; "an example of the acyl group is the acetyl group" [syn: acyl group ]

Wiktionary Word definitions in Wiktionary
n. (context organic chemistry English) Any of class of organic radicals, RCO-, formed by the removal of a hydroxyl group from a carboxylic acid.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Acyl \Ac"yl\, n. [Acid + -yl.] (Org. Chem.) 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. [Webster 1913 Suppl. +PJC] ||