| 释义 |
postmiˈtotic, a. Cytology.
[post- B. 1 b.]
After mitosis; spec. (of a cell) having ceased (reversibly or irreversibly) to display cell division. Also absol., a cell which is unlikely or unable to divide again.
1942E. V. Cowdry Probl. Ageing (ed. 2) xxiv. 628 The highly specialized cells, formed from the last differentiating intermitotics at the end of the series,..are ‘end cells’. Their individual lives begin..after the last mitosis... In a word, they are postmitotics. Ibid. 631 The length of life of the majority of postmitotic nerve cells can be taken to be that of the body less one year. 1962Lancet 27 Jan. 211/1 The granulocytes are post-mitotic and can be ruled out, and so we are restricted to the ‘mononuclears’. 1968H. Harris Nucleus & Cytoplasm v. 92 When all the nuclei in the heterokaryon enter mitosis together, post-mitotic reconstitution may produce a single large nucleus at one step. 1971J. Z. Young Introd. Study Man xxii. 288 Errors in the hereditary instructions and their transcription may be of especial importance in post-mitotic cells. |