Source : Webster's Revised Unabridged Dictionary (1913)

Advisory \Ad*vi"so*ry\, a.
   Having power to advise; containing advice; as, an advisory
   council; their opinion is merely advisory.

         The General Association has a general advisory
         superintendence over all the ministers and churches.
                                                  --Trumbull.

Source : WordNet®

advisory
     adj : giving advice; "an advisory memorandum", "his function was
           purely consultative" [syn: {consultative}, {consultatory},
            {consultive}]