|endoderm or entoderm (ˈɛndəʊˌdɜːm)|
|ectoderm See also mesoderm the inner germ layer of an animal embryo, which gives rise to the lining of the digestive and respiratory tracts|
|entoderm or entoderm|
|endo'dermal or entoderm|
|endo'dermic or entoderm|
|ento'dermal or entoderm|
|ento'dermic or entoderm|
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.
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.