epiblast

[ep-uh-blast] /ˈɛp əˌblæst/
noun, Embryology
1.
the primordial outer layer of a young embryo before the segregation of the germ layers, capable of becoming the ectoderm and containing cells capable of becoming the mesoderm and endoderm.
Origin
1865-70; epi- + -blast
Related forms
epiblastic, adjective
British Dictionary definitions for epiblast

epiblast

/ˈɛpɪˌblæst/
noun
1.
(embryol) the outermost layer of an embryo, which becomes the ectoderm at gastrulation Also called ectoblast
Derived Forms
epiblastic, adjective
epiblast in Medicine

epiblast ep·i·blast (ěp'ə-blāst')
n.
The outer layer of a blastula that gives rise to the ectoderm after gastrulation.

ep'i·blast'ic adj.