n.

1. 【解】表皮；外皮
   To cure your wounds, the dermatologist will have to remove your epidermis and transplant a new one.

   要醫治好你的傷，皮膚科大夫必須移除你的外皮並移植一塊新的皮膚。

n.

1. Zoology  & Anatomy  the surface epithelium of the skin of an animal, overlying the dermis.
2. Botany  the outer layer of tissue in a plant.