The Collaborative International Dictionary of English v.0.48:

See \See\, n. [OE. se, see, OF. se, sed, sied, fr. L. sedes a
   seat, or the kindred sedere to sit. See Sit, and cf.
   Siege.]
   1. A seat; a site; a place where sovereign power is
      exercised. [Obs.] --Chaucer.
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            Jove laughed on Venus from his sovereign see.
                                                  --Spenser.
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   2. Specifically:
      (a) The seat of episcopal power; a diocese; the
          jurisdiction of a bishop; as, the see of New York.
      (b) The seat of an archbishop; a province or jurisdiction
          of an archbishop; as, an archiepiscopal see.
      (c) The seat, place, or office of the pope, or Roman
          pontiff; as, the papal see.
      (d) The pope or his court at Rome; as, to appeal to the
          see of Rome.
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   Apostolic see. See under Apostolic.
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The Collaborative International Dictionary of English v.0.48:

Apostolic \Ap`os*tol"ic\, Apostolical \Ap`os*tol"ic*al\, a. [L.
   apostolicus, Gr. ?: cf. F. apostolique.]
   1. Pertaining to an apostle, or to the apostles, their times,
      or their peculiar spirit; as, an apostolical mission; the
      apostolic age.
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   2. According to the doctrines of the apostles; delivered or
      taught by the apostles; as, apostolic faith or practice.
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   3. Of or pertaining to the pope or the papacy; papal.
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   Apostolical brief. See under Brief.

   Apostolic canons, a collection of rules and precepts
      relating to the duty of Christians, and particularly to
      the ceremonies and discipline of the church in the second
      and third centuries.

   Apostolic church, the Christian church; -- so called on
      account of its apostolic foundation, doctrine, and order.
      The churches of Rome, Alexandria, Antioch, and Jerusalem
      were called apostolic churches.

   Apostolic constitutions, directions of a nature similar to
      the apostolic canons, and perhaps compiled by the same
      authors or author.

   Apostolic fathers, early Christian writers, who were born
      in the first century, and thus touched on the age of the
      apostles. They were Polycarp, Clement, Ignatius, and
      Hermas; to these Barnabas has sometimes been added.

   Apostolic king (or majesty), a title granted by the pope
      to the kings of Hungary on account of the extensive
      propagation of Christianity by St. Stephen, the founder of
      the royal line. It is now a title of the emperor of
      Austria in right of the throne of Hungary.

   Apostolic see, a see founded and governed by an apostle;
      specifically, the Church of Rome; -- so called because, in
      the Roman Catholic belief, the pope is the successor of
      St. Peter, the prince of the apostles, and the only
      apostle who has successors in the apostolic office.

   Apostolical succession, the regular and uninterrupted
      transmission of ministerial authority by a succession of
      bishops from the apostles to any subsequent period.
      --Hook.
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