Epidermis



GRE 蓝宝 TOEFL

解释

GRE 红宝书

• n. 表皮, 外皮
• ［英］ n. 表皮, 外皮 ( the outmost layer of the skin)
• ［类］ epidermis : mammal / bark : conifer ( 哺乳动物和表皮 / 针叶植物和树皮)
• ［记］ epi ( 在...外) +dermis ( 皮) -> 外皮
• ［同］ 同根词: dermatology ( 皮肤病学)

Webster Collegiate

noun

• Etymology: Late Latin, from Greek, from epi- + derma skin — more at derm-
• Date: 1626
• 1.
  • a. the outer epithelial layer of the external integument of the animal body that is derived from the embryonic epiblast; specifically the outer nonsensitive and nonvascular layer of the skin of a vertebrate that overlies the dermis
  • b. any of various animal integuments
• 2. a thin surface layer of tissue in higher plants formed by growth of a primary meristem

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