fragile X syndrome

[fraj-uhl eks sin-drohm, -druhm, frajahyl]

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.

fragile-X syndrome

noun

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

Word History and Origins

Origin of fragile X syndrome¹

First recorded in 1980–85

Example Sentences

He suffered from Fragile-X Syndrome, a genetic disorder, and was 3-1/2 feet tall and weighed less than 17 pounds because of starvation, an autopsy found.

From Reuters

The nine-year-old suffered from Fragile-X Syndrome, a genetic disorder.

From Reuters

One cognitive disorder, fragile-X syndrome, is indeed much more common in men for this reason.

From Economist

That rate is similar, for example, to the rate of fragile-X syndrome, which is the second-most-common type of congenital learning difficulty after Down’s syndrome.

From Economist

Only 10 of autistics have an accompanying neurological disease that affects intelligence, such as fragile-X syndrome, which renders them more likely to have an intellectual disability.

From Nature