Acetyl n. : A complex, hypothetical radical, composed of two parts of carbon to three of hydrogen and one of oxygen. Its hydroxide is acetic acid.

Example:
Where do you get your Acetyl L Cartinine from and how much does it cost you and what brand do you get?

Taxonomy
Acetyl, Acetylation, acetyl group, free encyclopedia, acetyl chloride, molecule, acetyl-CoA, acetylsalicylic acid, organic molecules, histone acetylation, effectiveness, acyl, carbonyl, search, ethanone, Identifiers, g/mol, moiety.

Defination from the web:
... chemistry, acetyl is a functional group, the acyl with chemical formula C O CH 3. It is sometimes abbreviated as Ac (not to be confused with the element actinium). The acetyl group contains ... In IUPAC nomenclature, acetyl is called ethanoyl, although this term is rarely heard. ...