fragile X syndrome
noun
a widespread form of mental retardation caused by a faulty gene on the X chromosome.
Origin of fragile X syndrome
First recorded in 1980–85
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Medical definitions for fragile x syndrome
fragile X syndrome
n.
An inherited disorder causing mental retardation, enlarged testes, and facial abnormalities in males and mild mental retardation in females.
The American Heritage® Stedman's Medical Dictionary
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