DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   SEB
       n 1: a form of staphylococcal enterotoxin that has been used as
            an incapacitating agent in biological warfare [syn:
            staphylococcal enterotoxin B, SEB]