| 释义 |
pseudovary Zool.|ps-, sjuːdˈəʊvərɪ|
Also in Lat. form pseudovarium |-əʊˈvɛərɪəm|, pl. -ia.
[ad. mod.L. pseudovārium, f. Gr. ψευδ- (pseudo-) + ovārium ovary.]
a. The ovary or generative gland of certain imperfect female insects which reproduce parthenogenetically, and usually viviparously, as in aphides.
b. = proligerous pellicle: see proligerous a. 1. So pseuˈdoval a., pertaining to or containing pseudova (see below); pseudoˈvarian a., pertaining to a pseudovary; pseuˈdoviduct, the duct of a pseudovary; pseuˈdovum (pl. -ova), an ovum or egg produced by a pseudovary, and developing without fertilization; a parthenogenetic ovum.
1858T. H. Huxley in Trans. Linn. Soc. XXII. 208 The number of chambers..is necessarily regulated by the..rate at which new pseudova are detached from the pseudovarium. Ibid., The germ increases in size, and gradually becomes separated from the terminal chamber by the successive development..of new pseudova. 1864H. Spencer Princ. Biol. §75 I. 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. 1870Rolleston Anim. Life Introd. 112 This form of asexual genesis is called ‘pseudoparthenogenesis’, and the reproductive gland a ‘pseudovarium’. Ibid., The ‘pseudovaria’ [in certain dipterous larvæ] being destitute of any ‘pseudoviduct’. 1877Huxley Anat. Inv. Anim. vii. 383 It tears the pseudoval sac. Ibid. 447 The young are developed within organs which resemble the ovarioles of the true females..and may be termed pseudovaries. The terminal or anterior chamber of each pseudovarian tube is lined by an epithelium. 1878Bell Gegenbaur's Comp. Anat. 302 The so-called pseudova have been distinguished from the eggs. |