Acid salt is a term used in chemistry to refer to a salt that is formed when a weak acid reacts with a strong base. This type of salt is often acidic in nature and can be further classified into various categories based on its chemical properties. However, there are several synonyms for the term acid salt that can be used interchangeably. Some of the most common synonyms include hydrogen salts, acidic salts, acidic basic salts, and acidulated salts. These terms are often used in scientific literature and research papers to describe the chemical properties and reactions of acid salts.