XXY-syndrome

Từ điển WordNet v3.1 - WordNet Dictionary

noun

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
• Syn:
Klinefelter's syndrome, Klinefelter syndrome
• Hypernyms:
syndrome