'Down's syndrome' definitions:

Definition of 'Down's syndrome'

From: WordNet
noun
A congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation [syn: mongolism, mongolianism, Down's syndrome, Down syndrome, trisomy 21]

Definition of 'Down's syndrome'

From: GCIDE
  • Down syndrome \Down" syn`drome\, Down's syndrome \Down's" syn`drome\, n. (Med.) A congenital disorder caused by an extra chromosome 21 in some or all cells. It causes a variable number and degree of abnormalities, including retarded growth, mental retardation, a short nose, prominent epicanthic folds on the eyelids, a protruding lower lip, and other physical features having varying degrees of deviation from the normal. Called also mongolism, trisomy-21 and trisomy 21 syndrome. [PJC]

Words containing 'Down's syndrome'