hypoblastn.

/ˈhɪpə(ʊ)blɑːst/

/ˈhɪpə(ʊ)blast/

/ˈhʌɪpə(ʊ)blɑːst/

/ˈhʌɪpə(ʊ)blast/

Etymology: < hypo- prefix 1b + -blast comb. form. Compare French hypoblaste.

1. Botany. The flat dorsal cotyledon of a grass. ? Obsolete.

ΘΚΠ

the world > plants > particular plants > plants and herbs > a grass or grasses > [noun] > part of

bladec1450

grass root1474

bent1577

chat1601

grasstop1659

knee1678

locusta1707

straw1776

spikelet1793

strap1793

sheath-scale1796

spiket1796

stragule1821

scutellum1832

scobina1839

rachilla1842

chaff-scale1856

coleorhiza1866

hypoblast1882

lemma1906

1830 J. Lindley Introd. Nat. Syst. Bot. 296 Esenbeck..seems to entertain the opinion that this cotyledon [of grasses] is a special organ, for which he retains Richard's name of hypoblastus.

1855 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Hypoblastus.]

1882 Ogilvie's Imperial Dict. (new ed.)

1888 New Sydenham Soc. Lexicon Hypoblast, term given by L. C. Richard and Nees von Esenbeck to the lateral expansion of the axis of the embryo of the Gramineæ. It is the cotyledon of Kunth, Brown, Poiteau, Turpin, Fischer, and Treviranus, and the scutellum of Gärtner.

2. Biology. The inner layer of cells in the blastoderm n.

ΘΚΠ

the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > embryo parts > [noun] > membrane and layers of cells

germinal layer1836

cell layer1843

mucous layer1846

germ layer1855

mesoblast1857

blastoderm1859

head fold1873

mesoderm1873

epiblast1875

hypoblast1875

splanchnopleure1875

mesenchyme1881

acroblast1884

mesothelium1886

epimere1890

mesectoderm1894

mesendoderm1894

cœloblast1895

placode1907

shield1913

mesentoderm1921

meristoderm1945

bilayer1962

1875 Huxley in Encycl. Brit. II. 51/1 In the embryo [of the Metazoa] the representatives of these two layers [ectoderm and endoderm] are the epiblast and hypoblast.

1877 T. H. Huxley Man. Anat. Invertebrated Animals i. 50 The inner wall of the sac is the hypoblast (endoderm of the adult), the outer the epiblast (ectoderm).

1896 T. C. Allbutt et al. Syst. Med. I. 59 The endoderm or hypoblast, appears as a cul-de-sac.

Derivatives

hypoblastic adj. /hɪpəʊ-/

/haɪpəʊˈblæstɪk/ of or belonging to the hypoblast.

ΘΚΠ

the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > embryo parts > [adjective] > blastoderm, etc.

blastodermic1835

blastodermatic1849

mesoblastic1874

mesodermic1875

hypoblastic1877

mesodermal1877

involunto-motory1878

homodermic1883

mesothelial1886

epiblastic1887

triploblastic1888

tetrablastic1891

triblastic1901

1877 T. H. Huxley Man. Anat. Invertebrated Animals xii. 663 The hypoblastic cells are invested by those of the epiblast.

1897 T. C. Allbutt et al. Syst. Med. III. 680 The body cavity is the outgrowth from the primitive alimentary canal with the hypoblastic covering of which its lining membrane is continuous.

This entry has not yet been fully updated (first published 1899; most recently modified version published online September 2020).

单词	hypoblast
释义	hypoblastn. /ˈhɪpə(ʊ)blɑːst//ˈhɪpə(ʊ)blast//ˈhʌɪpə(ʊ)blɑːst//ˈhʌɪpə(ʊ)blast/ Etymology: < hypo- prefix 1b + -blast comb. form. Compare French hypoblaste. 1. Botany. The flat dorsal cotyledon of a grass. ? Obsolete. ΘΚΠ the world > plants > particular plants > plants and herbs > a grass or grasses > [noun] > part of bladec1450 grass root1474 bent1577 chat1601 grasstop1659 knee1678 locusta1707 straw1776 spikelet1793 strap1793 sheath-scale1796 spiket1796 stragule1821 scutellum1832 scobina1839 rachilla1842 chaff-scale1856 coleorhiza1866 hypoblast1882 lemma1906 1830 J. Lindley Introd. Nat. Syst. Bot. 296 Esenbeck..seems to entertain the opinion that this cotyledon [of grasses] is a special organ, for which he retains Richard's name of hypoblastus. 1855 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Hypoblastus.] 1882 Ogilvie's Imperial Dict. (new ed.) 1888 New Sydenham Soc. Lexicon Hypoblast, term given by L. C. Richard and Nees von Esenbeck to the lateral expansion of the axis of the embryo of the Gramineæ. It is the cotyledon of Kunth, Brown, Poiteau, Turpin, Fischer, and Treviranus, and the scutellum of Gärtner. 2. Biology. The inner layer of cells in the blastoderm n. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > embryo parts > [noun] > membrane and layers of cells germinal layer1836 cell layer1843 mucous layer1846 germ layer1855 mesoblast1857 blastoderm1859 head fold1873 mesoderm1873 epiblast1875 hypoblast1875 splanchnopleure1875 mesenchyme1881 acroblast1884 mesothelium1886 epimere1890 mesectoderm1894 mesendoderm1894 cœloblast1895 placode1907 shield1913 mesentoderm1921 meristoderm1945 bilayer1962 1875 Huxley in Encycl. Brit. II. 51/1 In the embryo [of the Metazoa] the representatives of these two layers [ectoderm and endoderm] are the epiblast and hypoblast. 1877 T. H. Huxley Man. Anat. Invertebrated Animals i. 50 The inner wall of the sac is the hypoblast (endoderm of the adult), the outer the epiblast (ectoderm). 1896 T. C. Allbutt et al. Syst. Med. I. 59 The endoderm or hypoblast, appears as a cul-de-sac. Derivatives hypoblastic adj. /hɪpəʊ-//haɪpəʊˈblæstɪk/ of or belonging to the hypoblast. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > embryo parts > [adjective] > blastoderm, etc. blastodermic1835 blastodermatic1849 mesoblastic1874 mesodermic1875 hypoblastic1877 mesodermal1877 involunto-motory1878 homodermic1883 mesothelial1886 epiblastic1887 triploblastic1888 tetrablastic1891 triblastic1901 1877 T. H. Huxley Man. Anat. Invertebrated Animals xii. 663 The hypoblastic cells are invested by those of the epiblast. 1897 T. C. Allbutt et al. Syst. Med. III. 680 The body cavity is the outgrowth from the primitive alimentary canal with the hypoblastic covering of which its lining membrane is continuous. This entry has not yet been fully updated (first published 1899; most recently modified version published online September 2020). < n.1875
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