Lexic.us

Definition of Williams syndrome

1. Noun. A rare congenital disorder associated with deletion of genetic material in chromosome 7; characterized by mental deficiency and some growth deficiency and elfin faces but an overly social personality and a remarkable gift for vocabulary.

Medical Definition of Williams syndrome

1. Supravalvular aortic stenosis, mental retardation, elfin facies, and transient hypercalcaemia in infancy. It affects both sexes, with onset at birth or early infancy. Its aetiology is unknown. The primary disturbance begins in utero. There is a familial tendency but no genetic basis is apparent. It is possibly an abnormality of vitamin d metabolism. Its prognosis depends upon the degree of malformation and surgical correction. (12 Dec 1998)

Lexicographical Neighbors of Williams Syndrome

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