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• fragile X syndrome
  fragile X syndrome

  noun

  an inherited genetic disorder caused by a faulty gene on the X chromosome and having various possible effects, including developmental delays in infancy and early childhood, learning disabilities, intellectual disability, and a number of social, behavioral, and physical difficulties.
• fragile-X syndrome
  fragile-X syndrome

  noun

  an inherited condition characterized by mental subnormality: affected individuals have an X-chromosome that is easily damaged under certain conditions

fragile X syndrome

American  

[fraj-uhl eks sin-drohm, -druhm, frajahyl] / ˈfrædʒ əl ˈɛks ˌsɪn droʊm, -drəm, ˈfrædʒaɪl /

noun

1. an inherited genetic disorder caused by a faulty gene on the X chromosome and having various possible effects, including developmental delays in infancy and early childhood, learning disabilities, intellectual disability, and a number of social, behavioral, and physical difficulties.

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fragile-X syndrome British  

noun

1. an inherited condition characterized by mental subnormality: affected individuals have an X-chromosome that is easily damaged under certain conditions

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Etymology

Origin of fragile X syndrome

First recorded in 1980–85