ðə pˈoʊstoːɹbˌɪɾəl ɪz wˈʌn ʌvðə bˈoʊnz ɪn vˈɜːɾɪbɹˌeɪt skˈʌlz wˌɪtʃ fˈɔːɹmz ɐ pˈoːɹʃən ʌvðə dˈɜːməl skˈʌl ɹˈuːf ænd, sˈʌmtaɪmz, ɐ ɹˈɪŋ ɐbˌaʊt ðɪ ˈɔːɹbɪt.
The postorbital is one of the bones in vertebrate skulls which forms a portion of the dermal skull roof and, sometimes, a ring about the orbit.