noun[mass noun] Medicine
An inherited condition characterized by an X chromosome that is abnormally susceptible to damage, especially by folic acid deficiency. Affected individuals tend to have limited intellectual functions.
- Such conditions include fragile X syndrome, neurofibromatosis, tuberous sclerosis, Noonan's syndrome and Cornelia de Lange's syndrome.
- In addition, an increased frequency of occurrence is noted in patients with genetic conditions such as fragile X syndrome and tuberous sclerosis.
- My siblings are affected by fragile X syndrome, a condition that causes their mental retardation and makes them hypersensitive to sounds and touch.
Definition of fragile X syndrome in:
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