Barr body

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Related to Barr body: Pseudoautosomal region

Barr body

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

[After Murray Llewellyn Barr (1908-1995), Canadian anatomist.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Barr′ bod`y

an inactive Xchromosome present in the nuclear membrane of female somatic cells, used for verifying the sex of an individual.
[1960–65; after Murray Latin. Barr (born 1908), Canadian physician]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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References in periodicals archive ?
Compared with a Barr body, which appears as a drumstick-shaped appendage of a nuclear lobe, (4) a Howell-Jolly body-like inclusion appears as a completely detached and densely basophilic inclusion in the cytoplasm of neutrophils.
each entrant to submit to a chromosome test known as the Barr body test.
From a sample of "normal appearing males," the Barr body test labeled one out of seven hundred as female.
X chromatin and intra-nuclear structure is also known as Barr body as it was first discovered by Barr et al.