ɐn ˈeɪkwɪəs səlˈuːʃən əvən ˈæsɪd hɐz ɐ pˈiː ˈeɪtʃ lˈɛs ðɐn sˈɛvən ænd ɪz kəlˈoʊkwɪəli ˈɔːlsoʊ ɹᵻfˈɜːd tʊ æz "ˈæsɪd" æz ˈɪn "dɪsˈɑːlvd ɪn ˈæsɪd", wˌaɪl ðə stɹˈɪkt dˌɛfɪnˈɪʃən ɹᵻfˈɜːz ˈoʊnli tə ðə sˈɑːljuːt.
An aqueous solution of an acid has a pH less than 7 and is colloquially also referred to as "acid" (as in "dissolved in acid"), while the strict definition refers only to the solute.