单词 | oogone |
释义 | oogonen. Biology. Now rare. = oogonium n. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > ovum or ootid > ovocyte or oogonium ooblast1885 oogone1889 oocyte1895 oogonium1895 ovocyte1896 secondary oocyte1897 ovogonium1906 1889 A. W. Bennett & G. R. M. Murray Handbk. Cryptogamic Bot. iv. 185 In the higher families [of Algae] the oospheres and antherozoids are formed in special cells or organs, known as oogones and antherids respectively. 1907 Bull. Torrey Bot. Club 34 400 Oöspores surrounded by periplasm at maturity, 25–35 μ; oögone persistent, wrinkled, yellowish-brown. 1939 E. A. Bessey Text-bk. Mycol. (new ed.) vii. 164 The nuclei pass into one of the central cells, the oogone, from which arise the ascogenous hyphae with numerous pairs of nuclei. 1997 G. S. Helfman et al. Diversity of Fishes ix. 120/1 Oogones develop from primordial sex cells in the germinal epithelium of the ovary wall. This is a new entry (OED Third Edition, June 2004; most recently modified version published online March 2022). < n.1889 |
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