We found one dictionary that defines the word fragile-x syndromes:

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1. fragile-X syndromes, fragile-X syndromes: Collins English Dictionary

▸ Words similar to fragile-x syndromes ▸ Usage examples for fragile-x syndromes ▸ Idioms related to fragile-x syndromes ▸ Wikipedia articles (New!) ▸ Words that often appear near fragile-x syndromes ▸ Rhymes of fragile-x syndromes ▸ Invented words related to fragile-x syndromes