endoderm > define

noun

• The inner germ layer that develops into the lining of the digestive and respiratory systems.
  • synonyms: entoderm, endoblast, entoblast, hypoblast

• (n.) The inner layer of the skin or integument of an animal.
• (n.) The innermost layer of the blastoderm and the structures derived from it; the hypoblast; the entoblast. See Illust. of Ectoderm.