protogynousadj.

Brit.

/prə(ʊ)ˈtɒdʒᵻnəs/, U.S.

/proʊˈtɑdʒənəs/

Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: proto- comb. form, -gynous comb. form.

Etymology: < proto- comb. form + -gynous comb. form, after German protogynisch ( F. H. G. Hildebrand Die Geschlechter-Vertheilung bei den Pflanzen (1867) 18). Compare protogyny n. Compare also protandrous adj.With sense 1 compare slightly later proterogynous adj.

1. Botany. Having a stigma that reaches maturity before the anthers in the same flower (and is thus receptive to pollen from other flowers); = proterogynous adj. 1. Cf. protandrous 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

1870 Jrnl. Bot., Brit. & Foreign 8 320 Chlora perfoliata..is protogynous.

1909 J. R. A. Davis tr. Knuth Handbk. Flower Pollination III. 221 The flowers in Greenland were found by Warming to be feebly protogynous, the anthers dehiscing soon after the maturation of the stigma.

1973 Nature 23 Mar. 275/2 Some cross-pollination may occur because the flowers are protogynous and have some insect visitors.

2002 Ann. Bot. 90 613 In protogynous plants, female flowers of early blooming plants are at a reproductive disadvantage because they cannot set fruit due to the lack of available pollen.

2. Zoology. Of a hermaphrodite animal: having female reproductive organs that reach maturation before the male organs. Also: of, relating to, or designating hermaphroditism or sex reversal that follows the same sequence. Cf. protandrous adj. 2.

ΘΚΠ

the world > animals > invertebrates > colony or compound organism > [adjective] > protogynous

protogynous1929

proterogynous1936

the world > animals > animal body > general parts > sexual organs and reproduction > [adjective] > hermaphrodite

hermaphrodite1753

monoecious1826

gynandrous1852

monoic1857

protogynous1929

1929 Trans. Amer. Microsc. Soc. 48 72 Whether this [turbellarian] species is protandrous or protogynous has not as yet been determined.

1973 Nature 12 Oct. 333/1 This system is an illustration of the phenomenon of social determination of phenotype, which includes social control of sex reversal in protogynous fishes.

1991 New Scientist 7 Sept. 46/1 An individual may produce the most offspring if it reproduces as a female when small and then switches to male function when larger. This pattern of sex change is called protogynous (or female-first) hermaphroditism.

This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).

单词	protogynous
释义	protogynousadj. Brit. /prə(ʊ)ˈtɒdʒᵻnəs/, U.S. /proʊˈtɑdʒənəs/ Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: proto- comb. form, -gynous comb. form. Etymology: < proto- comb. form + -gynous comb. form, after German protogynisch ( F. H. G. Hildebrand Die Geschlechter-Vertheilung bei den Pflanzen (1867) 18). Compare protogyny n. Compare also protandrous adj.With sense 1 compare slightly later proterogynous adj. 1. Botany. Having a stigma that reaches maturity before the anthers in the same flower (and is thus receptive to pollen from other flowers); = proterogynous adj. 1. Cf. protandrous 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 1870 Jrnl. Bot., Brit. & Foreign 8 320 Chlora perfoliata..is protogynous. 1909 J. R. A. Davis tr. Knuth Handbk. Flower Pollination III. 221 The flowers in Greenland were found by Warming to be feebly protogynous, the anthers dehiscing soon after the maturation of the stigma. 1973 Nature 23 Mar. 275/2 Some cross-pollination may occur because the flowers are protogynous and have some insect visitors. 2002 Ann. Bot. 90 613 In protogynous plants, female flowers of early blooming plants are at a reproductive disadvantage because they cannot set fruit due to the lack of available pollen. 2. Zoology. Of a hermaphrodite animal: having female reproductive organs that reach maturation before the male organs. Also: of, relating to, or designating hermaphroditism or sex reversal that follows the same sequence. Cf. protandrous adj. 2. ΘΚΠ the world > animals > invertebrates > colony or compound organism > [adjective] > protogynous protogynous1929 proterogynous1936 the world > animals > animal body > general parts > sexual organs and reproduction > [adjective] > hermaphrodite hermaphrodite1753 monoecious1826 gynandrous1852 monoic1857 protogynous1929 1929 Trans. Amer. Microsc. Soc. 48 72 Whether this [turbellarian] species is protandrous or protogynous has not as yet been determined. 1973 Nature 12 Oct. 333/1 This system is an illustration of the phenomenon of social determination of phenotype, which includes social control of sex reversal in protogynous fishes. 1991 New Scientist 7 Sept. 46/1 An individual may produce the most offspring if it reproduces as a female when small and then switches to male function when larger. This pattern of sex change is called protogynous (or female-first) hermaphroditism. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022). < adj.1870
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