Prader–Willi syndrome
/ˌprɑːdəˈvɪli
/noun [mass noun]
A rare congenital disorder characterized by learning difficulties, growth abnormalities, and obsessive eating, caused especially by the absence of certain genes normally present on the copy of chromosome 15 inherited from the father.
Origin
1960s: named after Andrea Prader (born 1919) and Heinrich Willi (1900–71), Swiss paediatricians.
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