单词 | pseudovarium |
释义 | † pseudovariumn. Zoology. Obsolete. An ovary which produces ova that can develop without fertilization (pseudova), as in some aphids and gall midges. ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > sexual organs or reproduction > ovary or generative gland pseudovarium1859 1859 T. H. Huxley in Trans. Linn. Soc. 1858 22 208 The number of chambers..is necessarily regulated by the..rate at which new pseudova are detached from the pseudovarium. 1864 H. Spencer Princ. Biol. I. §75. 214 In the Aphides..from the fertilized eggs laid by perfect females, there grow up imperfect females, in the pseud-ovaria of which there are developed pseud-ova. 1870 G. Rolleston Forms Animal Life Introd. 112 This form of asexual genesis is called ‘pseudoparthenogenesis’, and the reproductive gland a ‘pseudovarium’. DerivativesΘΚΠ the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [adjective] > of abdomen > relating to a pseudovary pseudovarian1859 1859 T. H. Huxley in Trans. Linn. Soc. 1858 22 200 The marked contrast between the perfect distinctness of the endoplast in the ultimate pseudovarian chamber, and its apparent absence..in the penultimate chamber, was the more striking. 1877 T. H. Huxley Man. Anat. Invertebrated Animals vii. 447 The terminal or anterior chamber of each pseudovarian tube is lined by an epithelium. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online June 2018). < |
随便看 |
|
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。