endodermn.

/ˈɛndəʊdəːm/

Etymology: < Greek ἔνδον (see endo- prefix and comb. form) + δέρμα skin.

1. Botany.

a. A layer of large cambium cells lying beneath the liber.

ΚΠ

1835 J. Lindley Introd. Bot. (1848) I. 193 The cellular face of the liber... A. Richard distinguishes by the name of subliberian layer, or Endoderm.

Categories »

b. The inner layer of the wall of a vegetable cell.

2. Biology.

a. The inner layer of the blastoderm.

ΚΠ

1862 H. Spencer First Princ. ii. xiii. §112. 374 The..blastoderm..divides into two layers..the ectoderm and the endoderm.

b. The lining of the internal cavity of the Cœlenterata.

ΚΠ

1861 J. R. Greene Man. Animal Kingdom II. 21 The endoderm, whose free surface forms the lining of the large internal cavity.

1877 T. H. Huxley Man. Anat. Invertebrated Animals iii. 113 The endoderm..is composed of a layer of very distinct cells.

c. attributive.

ΚΠ

1885 Encycl. Brit. XIX. 14/2 The endoderm cells..are almost wholly taken up in the chemical work of digesting and assimilating the food received into the cavity, the lining of which they form.

1914 E. W. MacBride Text-bk. Embryol. I. viii. 171 The formation of a cap of small ectoderm cells resting on larger endoderm cells and gradually investing the latter by the process called epibole.

1940 Chambers's Techn. Dict. 297/1 Endoderm disc, in certain Malacostraca, a posterior unpaired thickening on the ventral surface of the blastoderm during early development.

Derivatives

endoˈdermal adj.

ΚΠ

1877 T. H. Huxley Man. Anat. Invertebrated Animals i. 57 The endodermal lining of the enterocœle.

endoˈdermic adj. pertaining to or of the nature of an endoderm.

ΚΠ

1877 T. H. Huxley Man. Anat. Invertebrated Animals iii. 114 The flagellæ of the endodermic cells.

endoˈdermis n. [on the analogy of epidermis] Botany

ΚΠ

1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns 121 The endodermis is a sheath consisting in all cases of one single layer of cells.

This entry has not yet been fully updated (first published 1891; most recently modified version published online September 2018).

单词	endoderm
释义	endodermn. /ˈɛndəʊdəːm/ Etymology: < Greek ἔνδον (see endo- prefix and comb. form) + δέρμα skin. 1. Botany. a. A layer of large cambium cells lying beneath the liber. ΚΠ 1835 J. Lindley Introd. Bot. (1848) I. 193 The cellular face of the liber... A. Richard distinguishes by the name of subliberian layer, or Endoderm. Categories » b. The inner layer of the wall of a vegetable cell. 2. Biology. a. The inner layer of the blastoderm. ΚΠ 1862 H. Spencer First Princ. ii. xiii. §112. 374 The..blastoderm..divides into two layers..the ectoderm and the endoderm. b. The lining of the internal cavity of the Cœlenterata. ΚΠ 1861 J. R. Greene Man. Animal Kingdom II. 21 The endoderm, whose free surface forms the lining of the large internal cavity. 1877 T. H. Huxley Man. Anat. Invertebrated Animals iii. 113 The endoderm..is composed of a layer of very distinct cells. c. attributive. ΚΠ 1885 Encycl. Brit. XIX. 14/2 The endoderm cells..are almost wholly taken up in the chemical work of digesting and assimilating the food received into the cavity, the lining of which they form. 1914 E. W. MacBride Text-bk. Embryol. I. viii. 171 The formation of a cap of small ectoderm cells resting on larger endoderm cells and gradually investing the latter by the process called epibole. 1940 Chambers's Techn. Dict. 297/1 Endoderm disc, in certain Malacostraca, a posterior unpaired thickening on the ventral surface of the blastoderm during early development. Derivatives endoˈdermal adj. ΚΠ 1877 T. H. Huxley Man. Anat. Invertebrated Animals i. 57 The endodermal lining of the enterocœle. endoˈdermic adj. pertaining to or of the nature of an endoderm. ΚΠ 1877 T. H. Huxley Man. Anat. Invertebrated Animals iii. 114 The flagellæ of the endodermic cells. endoˈdermis n. [on the analogy of epidermis] Botany ΚΠ 1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns 121 The endodermis is a sheath consisting in all cases of one single layer of cells. This entry has not yet been fully updated (first published 1891; most recently modified version published online September 2018). < n.1835
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