A Cuticle

1. The outermost layer of the skin of vertebrates; the epidermis.
2. The strip of hardened skin at the base and sides of a fingernail or toenail.
3. Dead or cornified epidermis.
4. (zoology, botany) A noncellular protective covering outside the epidermis of many invertebrates and plants.
5. A thin skin formed on the surface of a liquid.

Synonyms

• (zoology, botany) (outer protective covering): cuticula