Down syndrome

/ˌdaʊn(z) ˌsɪnˈdroʊm/
/daʊn ˈsɪndrəʊm/
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Definitions of Down syndrome
  1. noun
    a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
    synonyms: Down's syndrome, mongolianism, mongolism, trisomy 21
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    type of:
    birth defect, congenital abnormality, congenital anomaly, congenital defect, congenital disorder
    a defect that is present at birth
    trisomy
    chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell
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