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Related to endoderm: mesoderm


 (ĕn′də-dûrm′) also en·to·derm (ĕn′tə-)
The innermost of the three primary germ layers of an animal embryo, developing into the gastrointestinal tract, the lungs, and associated structures. Also called hypoblast.

en′do·der′mal adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈɛndəʊˌdɜːm) or


(Zoology) the inner germ layer of an animal embryo, which gives rise to the lining of the digestive and respiratory tracts. See also ectoderm, mesoderm
ˌendoˈdermal, ˌendoˈdermic, ˌentoˈdermal, ˌentoˈdermic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈɛn dəˌdɜrm)

also entoderm

1. the innermost cell layer of the embryo in its gastrula stage.
2. the innermost body tissue that derives from this layer, as the gut lining.
[1825–35; < French endoderme; see endo-, -derm]
en`do•der′mal, en`do•der′mic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


An embryo’s inner germ layer, producing some internal organs and the linings of the digestive and respiratory systems. See ectoderm, mesoderm.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.endoderm - the inner germ layer that develops into the lining of the digestive and respiratory systems
germ layer - (embryology) any of the 3 layers of cells differentiated in embryos following gastrulation
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n. endodermo, la más interna de las tres membranas del embrión.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
The liver, gallbladder and bile ducts (bile ducts, common hepatic duct, common bile duct and cystic duct) originate from the bud or hepatic diverticulum, initially a thickening and then a ventral evagination of the endoderm of the anterior primitive intestine which, at beginning of the fourth week, it extends to the transverse septum of the future diaphragm.
As a postdoctoral fellow at Harvard Medical School, Nerurkar focused on one particular aspect of embryonic development: how a group of stem cells -- the endoderm -- moves from the surface of the developing embryo to the center, and in doing so transforms from a flat sheet to a hollow tube.
The other two types of stem cell in the blastocyst are the extra-embryonic trophoblast stem cells (TSCs), which will form the placenta, and primitive endoderm stem cells (PESCs) that will form the yolk sac, ensuring that the fetus's organs develop properly and providing essential nutrients.
Human organoids have been generated in past studies with progenitor cells, such as the posterior gut endoderm progenitors generated in this study.
These tumors have a very complex endodermal morphology with components of both embryonic and extraembryonic endoderm. TER histologically presents as a disordered mixture of differentiated cell types from all three somatic germ layers.
Differentiation involves two stages: the first uses activin A (PeproTech) to induce endoderm and the second uses a combination of WNT3A (R&D Systems) and FGF4 (PeproTech) to induce mid/hindgut formation (Supplemental Figure S1).
Teratomas are the most common germ cell tumors of childhood [1], consisting of tissues from each of the three embryonic germ layers (ectoderm, mesoderm, and endoderm).
Specifically, an embryologic error may result in abnormal diverticularization of the GI endoderm through the developing notochord at 4 weeks' gestation.
Were qualitatively evaluated: (1) characteristics of epidermic cells; (2) cuticle; (3) thickness of the endoderm; (4) thickness of the exodermis; (5) hypodermis; (6) trichomes; (7) mesophyll; (8) vascular and extravascular fibers and (9) vascular bundles.