1) Backwardness 2) Birth defect 3) Congenital abnormality 4) Congenital anomaly 5) Congenital defect 6) Congenital disorder 7) Down syndrome 8) Mental retardation 9) Mongolianism 10) Retardation 11) Slowness 12) Subnormality 13) Trisomy 14) Trisomy 21 1) Mongolianism 
Synonym for Down's syndrome ... <genetics, syndrome> A congenital disorder in which a person is born with three copies of chromosome 21 (trisomy 21). ... Clinical features include moderate to severe mental retardation, slanting eyes, a broad short skull, broad hands and short fingers. Other congenital abnormalities include heart defects, oeso...
(mong´go-liz-әm) old term for Down syndrome; now considered offensive.
See Down's syndrome.
Mongolism: Obsolete name for Down syndrome. Down syndrome refers to the 19th century English physician J. Langdon Down who described the condition in 1866. In great error, Langdon Down attributed the condition to a 'reversion' to the 'mongoloid race.' He held that evolution had been reversed and there had been a sort of backslide from the superior ...
Also known as Down syndrome or Trisomy 21, this congenital defect is the most common chromosomal abnormality. This birth defect occurs when the child receives duplicated information from chromosome #21. Mongolism affects approximately 1 out of every 1,000 births and older mothers are more likely to carry a child with the disorder. The symptoms of ....
[n] - a congenital disorder caused by having an extra 21st chromosome
mongolianism noun a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
Former name (now considered offensive) for Down's syndrome
(no longer in technical use) Down syndrome.