English noun: XXY-syndrome | |||
| 1. | XXY-syndrome (state) 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 | ||
| Synonyms | Klinefelter syndrome, Klinefelter's syndrome | ||
| Broader (hypernym) | syndrome | ||