cathedral

Etymology 1

From Middle English cathedral, chathedral, cathiderall, from Old French [Term?], from Latin cathedrālis, from cathedra + -ālis.

adj

1. Relating to the throne or the see of a bishop.

Etymology 2

Ellipsis of cathedral church, from Middle English chirche cathederall, cathedrall chirch, calque of Late Latin ecclēsia cathedrālis (“church having a bishop's seat”), from Latin ecclēsia + cathedrālis. Displaced Old English hēafodċiriċe (literally “main church”).

noun

1. The principal church of an archbishop's/bishop's archdiocese/diocese which contains an episcopal throne.
2. (loosely or informally) A large or important church building.
3. (figurative) A large, impressive, lofty, and/or important building or place of some other kind.
   a cathedral of commerce
4. A large buttressed structure built by certain termites.