mongolianism

Thesaurus

Noun

1.

mongolianism - a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardationDown syndrome, Down's syndrome, mongolism, trisomy 21birth defect, congenital abnormality, congenital anomaly, congenital defect, congenital disorder - a defect that is present at birthtrisomy - chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell