Ma'anar ƙamus na kalmar "haƙori na biyu" yana nufin saitin haƙoran dindindin waɗanda ke maye gurbin haƙoran farko ko jarirai a cikin mutane da sauran dabbobi. Wannan tsari yana farawa kusan shekaru 6 kuma yana ci gaba har zuwa lokacin samartaka, tare da molars na ƙarshe (hakoran hikima) suna fashewa a ƙarshen matasa ko farkon ishirin. Haƙoran haƙora na biyu ya ƙunshi haƙora 32 gabaɗaya, gami da incisors takwas, canines huɗu, premolars takwas, da molars goma sha biyu (ciki har da haƙoran hikima huɗu). Fashewar haƙoran haƙora na biyu alama ce mai mahimmanci a ci gaban ɗan adam, saboda yana nuna sauyi daga ƙuruciya zuwa girma.