Q-Define cuticle?what is it's fraction?

In relation to this lesson,

• Cuticle is the outer layer of living tissue, in particular. It is a protective and waxy or hard layer covering the epidermis of a plant. 

Functions:

• Protect the plant
• Prevent water loss within the leaf.

More to know:

Also the Cuticle is the outermost layer of the skin of vertebrates, epidermis. The strip of hardened skin at the base and sides of a fingernail or toenail is also called as cuticle. It provides protection to the nail root from where the nail grows.