Klinefelter's syndrome definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a congenital disorder of males, caused by the presence of an extra X chromosome and characterized by small testicles and sterility
Origin: after H. Klinefelter (1912-90), United States physician
klinefelter's syndrome - Medical Definition
A chromosomal anomaly in males characterized by the presence of two X-chromosomes and one Y-chromosome, causing reduced testicular size, seminiferous tubule dysgenesis, and infertility. Also called XXY syndrome.