ectoderm
nounEtymology From ecto- + -derm.
1
Biology, Natural sciences The outermost of the three tissue layers in the embryo of a metazoan animal, which produces through development, the epidermis (skin) and nervous system of the adult.
- Derived terms
- ectodermal, ectodermic, ectodermosis, ectomorph, ectomorphic, mesectoderm, mesoectoderm, neurectoderm, neuroectoderm, trophectoderm