A triprotic acid (H3A) can undergo one, two, or three dissociations and has three dissociation constants, where Ka1 > Ka2 > Ka3.
ɐ tɹɪpɹˈɑːɾɪk ˈæsɪd ˈeɪtʃ θɹˈiː ˈeɪ kæn ˌʌndɚɡˈoʊ wˌʌn, tˈuː, ɔːɹ θɹˈiː dɪsˌoʊsɪˈeɪʃənz ænd hɐz θɹˈiː dɪsˌoʊsɪˈeɪʃən kˈɑːnstənts, wˌɛɹ kˈɑː wˈʌn kˈɑː tˈuː kˈɑː θɹˈiː.