exintinen.

Brit.

/ɛkˈsɪntɪn/,

/ɛkˈsɪntʌɪn/,

/ɛkˈsɪntiːn/, U.S.

/ɛkˈsɪntᵻn/,

/ɛkˈsɪntaɪn/

Origin: A borrowing from German. Etymon: German Exintine.

Etymology: < German Exintine (C. J. P. Fritzche 1837, in Mémoires présentés à l'Académie impériale des sciences de St Petersbourg 3 676) < Ex- ex- prefix¹ + Intine intine n. Compare exine n., extine n., intextine n., intine n.

Botany.

Originally: an additional layer of the wall of a pollen grain which is found between the intine and exine and lies next to or resembles the intine (now rare). In later use also: the outermost layer of the intine of the pollen grain of certain plants.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > stamen or pistil > pollen and related parts

sandarac1623

globulet1671

powder1672

bread1682

farina1721

pollen1723

father-dust1728

rough wax1744

yellow rain1755

dust1776

fovilla1793

anther dust1797

pollen mass1828

pollen tube1830

intextine1835

pollen grain1835

pollen granule1835

exine1839

exintine1839

intine1839

pollinium1849

sulphur shower1854

pollinic mass1857

pollen chamber1863

smoke1868

pollen sac1872

pollinarium1881

sulphur rain1882

pollinic chamber1885

perine1895

pollen content1926

sculpturing1943

monad1947

nexine1948

sexine1948

1839 J. Lindley Introd. Bot. (ed. 3) 189 Fritzche calls it the Exintine.

1880 C. H. Blackley Hay Fever (ed. 2) 122 (note) It is possible that the inner membrane (intine) does not in all cases form the pollen tube, but that in some it is formed by the delicate membrane (exintine) of which I have spoken.

1951 C. G. Elliott in Proc. Linn. Soc. New S. Wales 76 37 The pear-shaped ‘cell’ within the halo is closely surrounded by a wall of its own.., which we may call the ‘endintine’.., and the halo then is the ‘exintine’.

1969 Bot. Rev. 35 96 Brennan & Doyle..have demonstrated a three-layered intine (exintine, mesintine and endintine) in A[throtaxis] selaginoides Don.

2001 Grana 40 35 In A[ristea] major, and A. pauciflora, the exintine is not yet present.

This entry has been updated (OED Third Edition, December 2015; most recently modified version published online March 2022).

单词	exintine
释义	exintinen. Brit. /ɛkˈsɪntɪn/, /ɛkˈsɪntʌɪn/, /ɛkˈsɪntiːn/, U.S. /ɛkˈsɪntᵻn/, /ɛkˈsɪntaɪn/ Origin: A borrowing from German. Etymon: German Exintine. Etymology: < German Exintine (C. J. P. Fritzche 1837, in Mémoires présentés à l'Académie impériale des sciences de St Petersbourg 3 676) < Ex- ex- prefix¹ + Intine intine n. Compare exine n., extine n., intextine n., intine n. Botany. Originally: an additional layer of the wall of a pollen grain which is found between the intine and exine and lies next to or resembles the intine (now rare). In later use also: the outermost layer of the intine of the pollen grain of certain plants. ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > stamen or pistil > pollen and related parts sandarac1623 globulet1671 powder1672 bread1682 farina1721 pollen1723 father-dust1728 rough wax1744 yellow rain1755 dust1776 fovilla1793 anther dust1797 pollen mass1828 pollen tube1830 intextine1835 pollen grain1835 pollen granule1835 exine1839 exintine1839 intine1839 pollinium1849 sulphur shower1854 pollinic mass1857 pollen chamber1863 smoke1868 pollen sac1872 pollinarium1881 sulphur rain1882 pollinic chamber1885 perine1895 pollen content1926 sculpturing1943 monad1947 nexine1948 sexine1948 1839 J. Lindley Introd. Bot. (ed. 3) 189 Fritzche calls it the Exintine. 1880 C. H. Blackley Hay Fever (ed. 2) 122 (note) It is possible that the inner membrane (intine) does not in all cases form the pollen tube, but that in some it is formed by the delicate membrane (exintine) of which I have spoken. 1951 C. G. Elliott in Proc. Linn. Soc. New S. Wales 76 37 The pear-shaped ‘cell’ within the halo is closely surrounded by a wall of its own.., which we may call the ‘endintine’.., and the halo then is the ‘exintine’. 1969 Bot. Rev. 35 96 Brennan & Doyle..have demonstrated a three-layered intine (exintine, mesintine and endintine) in A[throtaxis] selaginoides Don. 2001 Grana 40 35 In A[ristea] major, and A. pauciflora, the exintine is not yet present. This entry has been updated (OED Third Edition, December 2015; most recently modified version published online March 2022). < n.1839
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