barr-body
noun
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.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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American Heritage
Medical Dictionary
Barr body (bär)
n.
The condensed, inactive, single X-chromosome found in the nuclei of somatic cells of most female mammals and whose presence is the basis of sex determination tests that are performed, for example, on athletes. Also called sex chromatin.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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00:10
Barr-body
is always a great word to know.
So is bezoar. Does it mean:
| a gadget; dingus; thingumbob. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
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