Meaning of Barr body

Barr' bod"y

Pronunciation: (bär), [key]
  1. a condensed, inactivated X chromosome present in most female mammals in the nuclei of all cells except the germ cells: used, as in sports competitions, to verify that an individual is genetically female. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.