Definition of Rett in English:

Rett

noun

Medicine
  • In the genitive and attributive, especially in "Rett syndrome". Designating an X-linked genetic disorder occurring predominantly in girls, typically characterized by the development of autistic symptoms, dementia, ataxia, seizures, and stereotypic hand-wringing movements, beginning in very early childhood after a brief period of apparently normal development.

Origin

1980s. From the name of Andreas Rett, Austrian physician, who described the disorder in 1966.

Pronunciation

Rett

/rɛt/