oogenesisn.
/əʊə(ʊ)ˈdʒɛnᵻsɪs/, U.S. /ˌoʊoʊˈdʒɛnəsəs/ Biology.
The production or development of an ovum.
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the world > life > biology > biological processes > procreation or reproduction > reproductive cycle > [noun] > production of ovum
ovogenesis1857
ovigenesis1887
oogenesis1890
oogeny1890
1890 Cent. Dict. Oögenesis, the genesis or origin and development of the ovum.
1892 Amer. Naturalist 26 626 The significance of the complicated process of spermatogenesis when compared with oogenesis lies in the fact that it is part of a general law.
1925 R. E. Snodgrass Anat. & Physiol. Honeybee xii. 270 The process [of development] in the case of the egg cells involves oogenesis and maturation.
1960 New Biol. 31 94 The process of oogenesis must not predetermine the detailed post-fertilization history of the egg.
1988 Mouse News Let. Nov. 97 The reactivation in oogenesis and EC cell hybrids and the inactivation which normally occurs during early differentiation provide an unusual program of gene regulation.
1997 G. S. Helfman et al. Diversity of Fishes ix. 119/2 Oogenesis, the development of eggs, occurs within the ovary and also progresses through various stages involving oogonia, primary and secondary oocytes, and finally ova or eggs.
This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022).
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n.1890