Epidermis (noun)

1. The outermost layer of the skin in animals, including humans, that serves as a barrier against the external environment.
2. The surface layer of an organism, especially one that is protective in nature.

Origin:

From the greek word 'epidermís', meaning 'the outer layer of skin'.

Examples:

1. The epidermis of the plant was thick and waxy, protecting it from the harsh sun and wind.
2. The epidermis of the fish was covered in scales to protect it from predators.
3. The scientist studied the epidermis of the animal to understand its role in regulating temperature and preventing dehydration.
4. The epidermis of the fruit was tough and inedible, but the flesh inside was sweet and juicy.
5. The dermatologist examined the patient's epidermis for any signs of skin cancer.