nexinen.

Brit.

/ˈnɛksɪn/,

/ˈnɛksʌɪn/,

/ˈnɛksiːn/, U.S.

/ˈnɛksaɪn/,

/ˈnɛksᵻn/

Origin: Formed within English, by compounding. Etymons: English non-sculptured , exine n.

Etymology: < n- (in non-sculptured < non- prefix + sculptured adj.) + exine n.: see quot. 1948. Compare sexine n.

Botany.

In the wall of a pollen grain or spore: the inner layer of the exine, lacking the sculpturing characteristic of the outermost layer (the sexine).

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

1948 G. Erdtman in Geologiska Föreningens i Stockholm Förhandlingar 70 267 (caption) Nonsculptured exine: nexine (exinium non-sculpturatum).

1952 G. Erdtman Pollen Morphol. & Plant Taxon. (1966) I. 19 Among flowering plants one of the basic elements of the sexine appears to consist of small drumstick-shaped rods..projecting at right angles from the nexine surface.

1975 Proc. Royal Soc. B. 190 282 Variable although the structure of pollen exines may be, one feature is repeatedly found throughout the angiosperms..namely a subdivision into an inner more or less continuous layer, referred to as the nexine by Erdtman..and an overlying sculptured layer, the sexine, composed of radially directed rods or bacula.

1995 Internat. Jrnl. Plant Sci. 156 120/2 The exine averages 1.2 μm in height and is two-parted, consisting of a light-staining sexine and a partially dark-staining nexine.

This is a new entry (OED Third Edition, September 2003; most recently modified version published online March 2022).

单词	nexine
释义	nexinen. Brit. /ˈnɛksɪn/, /ˈnɛksʌɪn/, /ˈnɛksiːn/, U.S. /ˈnɛksaɪn/, /ˈnɛksᵻn/ Origin: Formed within English, by compounding. Etymons: English non-sculptured , exine n. Etymology: < n- (in non-sculptured < non- prefix + sculptured adj.) + exine n.: see quot. 1948. Compare sexine n. Botany. In the wall of a pollen grain or spore: the inner layer of the exine, lacking the sculpturing characteristic of the outermost layer (the sexine). 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 1948 G. Erdtman in Geologiska Föreningens i Stockholm Förhandlingar 70 267 (caption) Nonsculptured exine: nexine (exinium non-sculpturatum). 1952 G. Erdtman Pollen Morphol. & Plant Taxon. (1966) I. 19 Among flowering plants one of the basic elements of the sexine appears to consist of small drumstick-shaped rods..projecting at right angles from the nexine surface. 1975 Proc. Royal Soc. B. 190 282 Variable although the structure of pollen exines may be, one feature is repeatedly found throughout the angiosperms..namely a subdivision into an inner more or less continuous layer, referred to as the nexine by Erdtman..and an overlying sculptured layer, the sexine, composed of radially directed rods or bacula. 1995 Internat. Jrnl. Plant Sci. 156 120/2 The exine averages 1.2 μm in height and is two-parted, consisting of a light-staining sexine and a partially dark-staining nexine. This is a new entry (OED Third Edition, September 2003; most recently modified version published online March 2022). < n.1948
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