mongolism
Noun
Meaning
a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
Source: WordNetSynonyms
Down syndrome
mongolianism
trisomy 21
ichthyosis
insanity
albinism
retardation
color blindness
backwardness
idiocy
cretinism
imbecility
arrested development
infantilism
amentia
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Antonyms
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birth defect
congenital disorder
trisomy
congenital abnormality
congenital anomaly
congenital defect