See Also: Barr body(medicine)
Barr body(health)
Barr body(dictionary)
Barr chromatin body(medicine)
Barr, Yvonne(medicine)
Barr, Murray(medicine)
Barr Pharmaceuticals(finance)
Epstein-Barr virus (EBV)(encyclopedia)
Epstein-Barr virus(dictionary)
epstein-barr virus(medicine)

Barr body (iou)



Barr body noun phr. M20.
[from M. L. Barr (1908-95), Canad. anatomist.]
Genetics. A strongly heterochromatic body just inside the membrane of non-dividing cell nuclei in females, representing a condensed, inactive X chromosome and diagnostic of genetic femaleness.