XXY-syndrome


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Related to XXY-syndrome: XYY syndrome, XXY disorder
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Noun1.XXY-syndrome - syndrome in males that is characterized by small testes and long legs and enlarged breasts and reduced sperm production and mental retardation; a genetic defect in which an extra X chromosome (XXY) is present in the male
Klinefelter syndrome, Klinefelter's syndrome
syndrome - a pattern of symptoms indicative of some disease