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[en-duh-durm] /ˈɛn dəˌdɜrm/
Also called endoblast. Embryology. the innermost cell layer of the embryo in its gastrula stage.
Anatomy. the innermost body tissue that derives from this layer, as the gut lining.
Also, entoderm.
Origin of endoderm
1825-35; < French endoderme; see endo-, -derm
Related forms
endodermal, endodermic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for endoderm


the inner germ layer of an animal embryo, which gives rise to the lining of the digestive and respiratory tracts See also ectoderm, mesoderm
Derived Forms
endodermal, endodermic, entodermal, entodermic, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for endoderm

1835, from endo- + -derm. Coined by Prussian embryologist Robert Remak (1815-1865).

Online Etymology Dictionary, © 2010 Douglas Harper
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endoderm in Medicine

endoderm en·do·derm (ěn'də-dûrm') or en·to·derm (ěn'tə-)
The innermost of the three primary germ layers of an embryo, developing into the gastrointestinal tract, the lungs, and associated structures. Also called hypoblast.

en'do·der'mal adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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endoderm in Science
The innermost of the primary germ layers of an animal embryo. In vertebrates, the endoderm gives rise to the respiratory tract, gastrointestinal tract (except mouth and anus), glands associated with the gastrointestinal tract, bladder, and urethra. Compare ectoderm, mesoderm.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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