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Noun: mongolianism
  1. A congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
    - mongolism, Down's syndrome, Down syndrome, trisomy 21

Derived forms: mongolianisms

Type of: birth defect, congenital abnormality, congenital anomaly, congenital defect, congenital disorder, trisomy