Epitrichium
[ep-i-trik-ee-uh m] /ˌɛp ɪˈtrɪk i əm/
noun, plural epitrichiums. Embryology.
1.
the outermost layer of the epidermis in most mammalian fetuses, usually disappearing before birth.
epitrichium ep·i·trich·i·um (ěp’ĭ-trĭk’ē-əm)
n.
See periderm.
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