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单词 pseudovarium
释义

pseudovariumn.

Inflections: Plural pseudovaria.
Origin: Formed within English, by compounding. Etymons: pseudo- comb. form, ovarium n.
Etymology: < pseudo- comb. form + ovarium n. Compare slightly earlier pseudovum n. N.E.D. (1909) gives the partial pronunciation as (-ovēə·riɒ̆m) -/əʊˈvɛərɪəm/.
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’.

Derivatives

pseudovarian adj. Obsolete rare.
ΘΚΠ
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).
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n.1859
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