The term 'ACID USED AS AN ANTISEPTIC' can be summarized as Boric Acid, which is a weak acid commonly used as an antiseptic. It is a naturally occurring compound found in many plants and is also produced synthetically. Boric acid has been used for centuries to treat a variety of ailments, including skin infections, eye infections, and yeast infections. It is also used as a preservative in some foods and cosmetics.