adj resembling the aisles of a cathedral; as, cathedral walks.
2. cathedral ·adj emanating from the chair of office, as of a pope or bishop; official; authoritative.
3. cathedral ·adj pertaining to the head church of a diocese; as, a cathedral church; cathedral service.
4. cathedral ·noun the principal church in a diocese, so called because in it the bishop has his official chair (cathedra) or throne.