Source : Webster's Revised Unabridged Dictionary (1913)

Ostensive \Os*ten"sive\, a.
   Showing; exhibiting.

   {Ostensive demonstration} (Math.), a direct or positive
      demonstration, as opposed to the apagogical or indirect
      method.

Source : WordNet®

ostensive
     adj 1: manifestly demonstrative
     2: represented or appearing as such; pretended; "His ostensible
        purpose was charity, his real goal popularity" [syn: {ostensible}]