DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   croup
       n 1: a disease of infants and young children; harsh coughing and
            hoarseness and fever and difficult breathing [syn: croup,
            spasmodic laryngitis]
       2: the part of an animal that corresponds to the human buttocks
          [syn: hindquarters, croup, croupe, rump]