visitor
    n 1: someone who visits [syn: visitor, visitant]

Visitor \Vis"it*or\ [Cf. F. visiteur.] [Written also visiter.]
   1. One who visits; one who comes or goes to see another, as
      in civility or friendship. "This great flood of visitors."
      --Shak.
      [1913 Webster]

   2. A superior, or a person lawfully appointed for the
      purpose, who makes formal visits of inspection to a
      corporation or an institution. See Visit, v. t., 2, and
      Visitation, n., 2.
      [1913 Webster]

            The king is the visitor of all lay corporations.
                                                  --Blackstone.
      [1913 Webster]