mongolianism


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Noun1.mongolianism - a congenital disorder caused by having an extra 21st chromosomemongolianism - a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
trisomy - chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell
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References in periodicals archive ?
At age 1, Karen was diagnosed with Down's Syndrome, commonly known as "mongolianism" or "mongolism."
BANCROFT, ESSAYS AND MISCELLANEOUS, MONGOLIANISM IN AMERICA 348 (n.p.