DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   ergot
       n 1: a plant disease caused by the ergot fungus
       2: a fungus that infects various cereal plants forming compact
          black masses of branching filaments that replace many grains
          of the plant; source of medicinally important alkaloids and
          of lysergic acid [syn: ergot, Claviceps purpurea]