An acid-neutralizing base is a compound that has the ability to nullify or neutralize the acidic effects of a substance. This type of compound is primarily used in chemistry applications and is essential in maintaining the pH balance. Synonyms for acid-neutralizing base include alkaline, base, basic, buffer, neutralizer, and antacid. These synonyms refer to the ability of a compound to counteract the effects of an acidic substance. An alkaline substance is one that has a pH level greater than 7, while a base is any substance that can accept a proton from an acid. Basic elements are also substances with pH levels greater than 7, while a buffer is a solution that can maintain a constant pH level. A neutralizer can effectively counteract the acidic effects of a substance, while antacids are types of medication that neutralize stomach acid.