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Prader-Willi syndrome

Pra·der-Wil·li syn·drome [ prdər víllee sìndrōm ]


noun 
Definition:
 
developmental disorder: a genetic disorder caused by a small chromosomal deletion that results in behavioral problems, underdeveloped genitals, and delayed puberty

[Mid-20th century. After Andrea Prader (1919-) and Heinrich Willi (1900-), Swiss pediatricians]
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