definitions

epitrichium

[ ep-i-trik-ee-uh m ]
/ ˌɛp ɪˈtrɪk i əm /

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

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

Nearby words

epitomise, epitomist, epitomize, epitope, epitrachelion, epitrichium, epitrochoid, epitympanic, epitympanum, epixylous, epizoic

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. 2019

Medicine definitions for epitrichium

epitrichium

[ ĕp′ĭ-trĭk′ē-əm ]

n.

periderm
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.