fragile X syndrome
noun
a widespread form of mental retardation caused by a faulty gene on the X chromosome.
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Origin of fragile X syndrome
First recorded in 1980–85
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for 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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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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
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.