ectodermic(redirected from ectodermicly)
Also found in: Thesaurus, Medical.
1. The outermost of the three primary germ layers of an embryo, from which the epidermis, nervous tissue, and, in vertebrates, sense organs develop.
2. The outer layer of a diploblastic animal, such as a jellyfish.
ec′to·der′mal, ec′to·der′mic adj.