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单词 epitrichial
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ep•i•trich•i•um  (ep′i trik′ē əm),USA pronunciation n., pl. -ums. [Embryol.]
  1. Developmental Biologythe outermost layer of the epidermis in most mammalian fetuses, usually disappearing before birth. Also called periderm. 
  • Greek tríchion, diminutive of thríx hair (see trichion); so called because hair develops under it in human embryos
  • Neo-Latin epi- + -trichium
  • 1880–85
ep′i•trich′i•al, adj. 
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更新时间：2026/1/22 0:26:22