| endoderm | (n) the inner germ layer that develops into the lining of the digestive and respiratory systems, Syn. hypoblast, entoblast, entoderm, endoblast |
| Endoblast | n. [ Endo- + -blast. ] (Biol.) Entoblast; endoplast. See Nucleus, [ 1913 Webster ] |
| Endoblastic | a. (Biol.) Relating to the endoblast; |