Source : Webster's Revised Unabridged Dictionary (1913)

Circumvention \Cir`cum*ven"tion\, n. [L. circumventio.]
   The act of prevailing over another by arts, address, or
   fraud; deception; fraud; imposture; delusion.

         A school in which he learns sly circumvention.
                                                  --Cowper.

Source : WordNet®

circumvention
     n : the act of evading by going around