Barr body

noun
\ ˈbär- How to pronounce Barr body (audio) \

Definition of Barr body

: a densely staining inactivated condensed X chromosome that is present in each somatic cell of most female mammals and is used as a test of genetic femaleness (as in a fetus)

called also sex chromatin

First Known Use of Barr body

1961, in the meaning defined above

History and Etymology for Barr body

Murray Llewellyn Barr †1995 Canadian anatomist

Learn More About Barr body

Time Traveler for Barr body

Time Traveler

The first known use of Barr body was in 1961

See more words from the same year

Dictionary Entries Near Barr body

barratry

Barr body

barre

See More Nearby Entries 

Statistics for Barr body

Cite this Entry

“Barr body.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Barr%20body. Accessed 17 Aug. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for Barr body

Barr body

noun
\ ˈbär- How to pronounce Barr body (audio) \

Medical Definition of Barr body

: a densely staining inactivated condensed X chromosome that is present in each somatic cell of most female mammals and is used as a test of genetic femaleness (as in a fetus or an athlete)

called also sex chromatin

WORD OF THE DAY

Test Your Vocabulary

Odd Habits and Quirks

  • image1926873504
  • Which of the following best describes an easily irritated person?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!