Ectoblast
Ectoblast , noun
[Ecto- + Greek {not transcribed} bud, germ.]
(a)
(Biology) The outer layer of the blastoderm; the epiblast; the ectoderm.
(b)
(Biology) The outer envelope of a cell; the cell wall. — Agassiz
Ectoblast , noun
[Ecto- + Greek {not transcribed} bud, germ.]