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Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A rare genetic disorder linked to the X chromosome, causing physical anomalies and developmental delays, characterised by retardation, hyperactive behaviour, constipation, hypotonia, and a characteristic facial appearance.

Etymologies

From the initials of the surnames of two sisters who had five sons with the syndrome. (Wiktionary)

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