The outermost layer of the skin of vertebrates; the epidermis.
A noncellular protective covering outside the epidermis of many invertebrates and plants.
The strip of hardened skin at the base and sides of a fingernail or toenail.
A thin skin formed on the surface of a liquid.
Dead or cornified epidermis.
The outermost layer of the pericarp of fruits; the skin or epicarp