- 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.
Origin of endoderm
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for endoderm
The outer is the Ectoderm and the inner is the Endoderm or Hypoblast.The Ethics of Medical Homicide and Mutilation
It consists of three layers: ectoderm, endoderm, and mesoderm.The Sea-beach at Ebb-tide
Augusta Foote Arnold
Endoderm, the tissue in an adult, derived from the hypoblast (which see), 19.The Biological Problem of To-day
The terminal portion of the endoderm is solid, and contains calcareous concretions.The Works of Francis Maitland Balfour, Volume III (of 4)
Francis Maitland Balfour
In the course of development, however, cells from the ectoderm and endoderm may migrate into it.
Word Origin and History for endoderm
Online Etymology Dictionary, © 2010 Douglas Harper
- The innermost of the three primary germ layers of an embryo, developing into the gastrointestinal tract, the lungs, and associated structures.hypoblast
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