epitrichium

[ep-i-trik-ee-uh m]

noun, plural ep·i·trich·i·ums. Embryology.

the outermost layer of the epidermis in most mammalian fetuses, usually disappearing before birth.

Origin of epitrichium

1880–85; < New Latin epi- + -trichium < Greek tríchion, diminutive of thríx hair (see trichion); so called because hair develops under it in human embryos

Also called periderm.

Related formsep·i·trich·i·al, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

epitrichium in Medicine

epitrichium

[ĕp′ĭ-trĭk′ē-əm]

periderm