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epitrichium

[ep-i-trik-ee-uh m]
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noun, plural ep·i·trich·i·ums. Embryology.
  1. the outermost layer of the epidermis in most mammalian fetuses, usually disappearing before birth.
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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-trĭkē-əm)
n.
  1. periderm