mongolism

mongolism
    n 1: a congenital disorder caused by having an extra 21st
         chromosome; results in a flat face and short stature and
         mental retardation [syn: {mongolism}, {mongolianism},
         {Down's syndrome}, {Down syndrome}, {trisomy 21}]
    

Down syndrome \Down" syn`drome\, Down's syndrome \Down's"
syn`drome\, n. (Med.)
   A congenital disorder caused by an extra chromosome 21 in
   some or all cells. It causes a variable number and degree of
   abnormalities, including retarded growth, mental retardation,
   a short nose, prominent epicanthic folds on the eyelids, a
   protruding lower lip, and other physical features having
   varying degrees of deviation from the normal. Called also
   {mongolism}, {trisomy-21} and {trisomy 21 syndrome}.
   [PJC]
    

43 Moby Thesaurus words for "mongolism":
      Christmas disease, Hartnup disease, Werdnig-Hoffmann disease,
      achromatic vision, albinism, amentia, arrested development,
      backwardness, blithering idiocy, color blindness, cretinism,
      cystic fibrosis, dichromatic vision, dysautonomia, half-wittedness,
      hemophilia, ichthyosis, idiocy, idiotism, imbecility, infantilism,
      insanity, mental defectiveness, mental deficiency, mental handicap,
      mental retardation, mongolianism, mongoloid idiocy, moronism,
      moronity, mucoviscidosis, muscular dystrophy, pancreatic fibrosis,
      profound idiocy, retardation, retardment, sickle-cell anemia,
      simple-wittedness, simplemindedness, simpleness, simplicity,
      subnormality, thalassemia