Pyroarsenic acid, also known as pyroarsenate or dihydrogen pyroarsenate, is a chemical compound with various synonyms. These alternative names describe different aspects of its composition or properties. One commonly encountered synonym is arsenic acid, which highlights its presence of arsenic as a key component. Additionally, it may be referred to as dihydrogen tetraoxidoarsenate or orthodioxidoarsenic acid, emphasizing its oxidizing properties. Moreover, pyroarsenic acid can also be called pyroarsenic oxide or pyroarsenous acid, underscoring its acidic nature. These synonyms allow scientists and chemists to more precisely communicate about the compound by using different terms that capture distinct characteristics or aspects of its chemical makeup.