DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   stewing
       n 1: an extreme state of worry and agitation; "his stewing over
            the fight kept him awake most of the night"
       2: cooking in a liquid that has been brought to a boil [syn:
          boiling, stewing, simmering]