Acetic anhydride Acetic anhydride (CH Plugin disabledPlugin tag cannot be executed. CO) Plugin disabledPlugin tag cannot be executed. O is a term used in chemistry for anhydride of acetic acid. This colourless and pungent liquid is used in industry to produce synthetic fibres. Nearby pages Acetobacter, Acetogenic, Acetone, Acetonitrile, Acetyl-coenzyme A, Acetylcholine