Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The condensed, inactive X-chromosome found in the nuclei of somatic cells of most female mammals. Also called sex chromatin.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A sex chromosome inactivated by packing in heterochromatin.

Etymologies

After Murray Llewellyn Barr (1908-1995), Canadian anatomist.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

Sorry, no example sentences found.

Wordnik is becoming a not-for-profit! Read our announcement here.

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.