cuticle
/ˈkjuːtɪkl/noun
1
- mass noun the outer layer of living tissue, in particular外皮, 尤指：
1.1
- Botany &. Zoology a protective and waxy or hard layer covering the epidermis of a plant, invertebrate, or shell【植, 动】（植物、无脊椎动物或贝壳类的）角质层, 表皮, 角质膜, 护膜。
1.2
- the outer cellular layer of a hair（毛发的）外细胞层。
2
- the dead skin at the base of a fingernail or toenail（手指或脚趾甲的）角皮。
派生词
cuticular
/kjuːˈtɪkjʊlə(r)/ adjective词源
late 15th cent. (denoting a membrane of the body)： from Latin cuticula, diminutive of cutis 'skin'.