Amphiprotic vs. Polyprotic
Amphiproticadjective
(chemistry) Able to both donate and accept a proton, and thus able to react both as an acid and a base; amphoteric.
Amphiproticadjective
having characteristics of both an acid and a base and capable of reacting as either
Polyproticadjective
That can donate (or accept) more than one proton; polybasic.
