NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,811 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

epidermis
(EH-pih-DER-mis)
The outer layer of the two main layers of the skin.

EnlargeSkin anatomy; drawing shows layers of the epidermis, dermis, and subcutaneous tissue including hair shafts and follicles, oil glands, lymph vessels, nerves, fatty tissue, veins, arteries, and a sweat gland.

Anatomy of the skin, showing the epidermis, dermis, and subcutaneous tissue.