Definitions for "Ectoderm"
The outer layer of the blastoderm; epiblast.
The external skin or outer layer of an animal or plant, this being formed in an animal from the epiblast. See Illust. of Blastoderm.
ek = outside + derma = skin; outer cell layer of embryo giving rise to CNS, skin, glands, etc.
specialized cells that differentiate into nerve and epithelial tissue
Keywords:  engagement