Synonyms and Antonyms for XXY

1. XXY (n.)

(genetics) abnormal complement of sex hormones in a male resulting in Klinefelter's syndrome


2. XXY-syndrome (n.)

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