Klinefelter's syndrome: Meaning and Definition of

Kline'fel•ter's syn"drome

Pronunciation: (klīn'fel-turz), [key]
— Pathol. Pathol.
  1. an abnormal condition in which at least one extra X chromosome is present in a male: characterized by reduced or absent sperm production, small testicles, and in some cases enlarged breasts.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.