adjective Relating to the office of a bishop or an archbishop.
noun The principal church serving as the office (and some as place of residence) of an archdiocese's/a diocese's archbishop/bishop which is symbolized by an episcopal throne known as the cathedra.
The bishop presided over the ceremony from his seat in the cathedral.
noun A large or important church building.
noun A large, impressive, lofty, and/or important building or place of some other kind.
a cathedral of commerce
noun A large buttressed structure built by certain termites.