单词 | proterogynous |
释义 | proterogynousadj. 1. Botany. = protogynous adj. 1. Cf. proterandrous adj. 1. ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [adjective] > having or relating to parts > of or having stamens or pistils > having particular order of maturation homogamous1854 protandrous1870 protogynous1870 synacmic1870 proterandrous1872 proterogynous1875 synanthetic1909 1875 J. Lubbock Wild Flowers iii. 51 Caltha palustris... The species..are said by Hildebrand to be proterogynous. 1919 A. H. R. Buller Ess. on Wheat v. xi. 300 In some plants..the flowers were proterogynous, the stigmas being exposed before the adjacent anthers had matured. 1962 Brittonia 14 72 Quantitative characters of the flowers are difficult to evaluate because of the proterogynous development. 2005 Biochem. Systematics & Ecol. 33 677 As in most Cyperaceae, the inflorescences of Eleocharis are proterogynous (the female organs become fertile before the male ones). 2. Zoology. = protogynous adj. 2. Cf. proterandrous adj. 2. ΘΚΠ the world > animals > invertebrates > colony or compound organism > [adjective] > protogynous protogynous1929 proterogynous1936 1936 Biol. Bull. 71 122 In still fewer cases the individual [of the shipworm or teredo] appears to be proterogynous. 1969 Q. Rev. Biol. 44 195/2 [The sipunculid] Golfingia minuta..is hermaphroditic when young, but female later on, except that an American form may be proterogynous. 1997 Scientia Marina 61 79 Dominant males [of the dusky grouper]..established territories in which they displayed aggressively towards neighbouring males and numerous smaller females (the species is proterogynous). This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022). < adj.1875 |
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