DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   root out
       v 1: pull up by or as if by the roots; "uproot the vine that has
            spread all over the garden" [syn: uproot, extirpate,
            deracinate, root out]
       2: destroy completely, as if down to the roots; "the vestiges of
          political democracy were soon uprooted" "root out corruption"
          [syn: uproot, eradicate, extirpate, root out,
          exterminate]