Definition of down's syndrome Down's syndrome

Down's syn•drome

We found 2 definitions of down's syndrome from 2 different sources.

What does down's syndrome mean?

Noun
down's syndrome - a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
		mongolism, mongolianism, Down's syndrome, Down syndrome, trisomy 21
		trisomy chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell

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down's syndrome (Noun)
Condition caused by a chromosomal deficiency, whereby the patients bear a certain resemblance to the Mongoloid race, such as a small head and tilted eyelids.