Germ layer

• The inner germ layer that develops into the lining of the digestive and respiratory systems

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1835, from endo- + -derm . Coined by Prussian embryologist Robert Remak (1815-1865).\n

WordNet Word definitions in WordNet
n. the inner germ layer that develops into the lining of the digestive and respiratory systems [syn: entoderm , endoblast , entoblast , hypoblast ]

Wiktionary Word definitions in Wiktionary
n. One of the three tissue layers in the embryo of a metazoan animal. Through development, it will produce the digestive system of the adult.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Hypoblast \Hy"po*blast\, n. [Pref. hypo- + -blast.] (Biol.) The inner or lower layer of the blastoderm; -- called also endoderm , entoderm , and sometimes hypoderm . See Illust. of Blastoderm , Delamination , and Ectoderm .

Wikipedia Word definitions in Wikipedia
Endoderm is one of the three primary germ layers in the very early human embryo . The other two layers are the ectoderm (outside layer) and mesoderm (middle layer), with the endoderm being the innermost layer. Cells migrating inward along the archenteron ...