单词 | ovovitelline |
释义 | ovovitellineadj. Zoology. Of or relating to the yolk of an egg (= vitelline adj. 2). Also: of or relating to both the ovum and the yolk; spec. designating a duct in certain flatworms along which yolk cells and ova both pass. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [adjective] > ovum > yolk yolked1584 vitelliferous1819 vitelline1835 yolk1836 vitellary1847 vitelligenous1859 vitelligine1864 vitellogenous1878 alecithal1880 centrolecithal1880 heterolecithal1892 homolecithal1892 vitelligerous1898 isolecithal1926 ovovitelline1945 vitellogenetic1961 vitellogenic1964 1945 Amer. Midland Naturalist 34 478 Papilla lies in male antrum into the roof of which opens the common ovovitelline duct accompanied by eosinophilous glands. 1951 L. B. Hyman Invertebrates II. 119 The yolk glands may discharge directly into the oviducts as in triclads, in which case the oviducts are more properly termed ovovitelline ducts. 1971 Arch. Internat. de Physiol. et Biochim. 79 359 Egg yolk and white are kept apart by the ovovitelline membrane. 1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) vii. 52/1 The vitelline duct and oviduct unite to form an ovovitelline duct, which has a dilated region, the ootype, where zygotes and vitelline cells are combined to form shelled eggs. This is a new entry (OED Third Edition, March 2005; most recently modified version published online March 2022). < adj.1945 |
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