1. [n]  any large and important church
2. [n]  the principal Christian church building of a bishop's diocese
3. [adj]  relating to or containing or issuing from a bishop's office or throne; "a cathedral church"
4. [adj]  of or relating to or resembling a cathedral; "tall trees whose branches met to form cathedral arches over the path"

Cathedral
After a breakdown in diplomatic efforts to secure a lasting peace between the Bajorans and Cardassians, an alliance of alien religions offers unexpected new hope, until a mysterious, ancient alien artifact sends crewmembers of the Defiant on individual odysseys of self-discovery at the height of a dangerous military confrontation. Original.

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1. \Ca*the"dral\, n. [LL. cathedralis (sc. ecclesia): cf.
   F. cath['e]drale. See {Cathedra}.]
   The principal church in a diocese, so called because in it
   the bishop has his official chair (Cathedra) or throne.
   

2. \Ca*the"dral\, a. [LL. cathedralis: cf. F.
   cath['e]dral.]
   1. Pertaining to the head church of a diocese; as, a
      cathedral church; cathedral service.
   2. Emanating from the chair of office, as of a pope or
      bishop; official; authoritative.
            Now, what solemnity can be more required for the
            pope to make a cathedral determination of an
            article!                              --Jer. Taylor.
   3. Resembling the aisles of a cathedral; as, cathedral walks.
      --Pope.