| 单词 | barr body |
| 释义 | Barr body in American English (bɑr) a structure found on the inside of the nuclear membrane of female cells that takes a dark stain and indicates by its presence the sex of the individual Word origin after M. L. Barr (1908-95), Cdn anatomistBarr body in American English (bɑːr) noun a condensed, inactivated X chromosome present in most female mammals in the nuclei of all cells except the germ cells Also called: sex chromatin Word origin [1960–65; after Murray L. Barr (1908–95), Canadian physician]This word is first recorded in the period 1960–65. Other words that entered Englishat around the same time include: buyback, deinstitutionalize, parvovirus, proxemics, tag question |
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