ENDODERM
endoderm: translation
n. [Gr. endon, within; derma, skin]
1. The innermost cell layer of the embryo forming the epithelium of the archenteron, endoblast, entoderm, and hypoblast.
2. (CNIDARIA)
Layer of cells lining the gastrovascular cavity.
3. (PORIFERA)
see pinacoderm.