■ noun Physiology a densely staining structure in the cell nuclei of females, consisting of a condensed, inactive X chromosome and regarded as diagnostic of genetic femaleness.
Origin
1960s: named after the Canadian anatomist M. L. Barr .
■ noun Physiology a densely staining structure in the cell nuclei of females, consisting of a condensed, inactive X chromosome and regarded as diagnostic of genetic femaleness.
Origin
1960s: named after the Canadian anatomist M. L. Barr .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004