DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   DES
       n 1: a potent estrogen used in medicine and in feed for
            livestock and poultry [syn: diethylstilbestrol,
            diethylstilboestrol, stilbestrol, stilboestrol,
            DES]
       2: synthetic nonsteroid with the properties of estrogen;
          formerly used to treat menstrual problems but was found to be
          associated with vaginal cancers in the daughters of women so
          treated during pregnancy [syn: diethylstilbesterol, DES,
          stilbesterol]