epitrichium

American  

[ep-i-trik-ee-uhm] / ˌɛp ɪˈtrɪk i əm /

noun

Embryology.

epitrichiums plural

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

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Other Word Forms

Derived Forms

• epitrichial
  adjective

Inflected Forms

Nouns

• epitrichiums
  plural

Etymology

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