XXY-syndrome
         n 1: 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}, {XXY-
               syndrome}]

English Dictionary: XXY- syndrome

by the DICT Development Group