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epitrichium

[ep-i-trik-ee-uh m]
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-trĭk′ē-əm)
n.
  1. periderm
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.