Source : Webster's Revised Unabridged Dictionary (1913)

Salutatory \Sa*lu"ta*to*ry\, a. [L. salutatorius. See {Salute}.]
   Containing or expressing salutations; speaking a welcome;
   greeting; -- applied especially to the oration which
   introduces the exercises of the Commencements, or similar
   public exhibitions, in American colleges.

Salutatory \Sa*lu"ta*to*ry\, n.
   1. A place for saluting or greeting; a vestibule; a porch.
      [Obs.] --Milton.

   2. (American Colleges) The salutatory oration.