What does dermal mean?
Dermal is an adjective meaning relating to the skin, and more specifically to the dermis — the thick layer of living tissue beneath the outer epidermis that contains blood vessels, nerve endings, hair follicles, and sweat glands. It appears most often in medical and cosmetic contexts: dermatologists speak of dermal layers, dermal fillers smooth wrinkles by plumping the dermis, and tattoos are created by depositing pigment into dermal tissue. In botany, dermal describes the protective outer tissue of a plant, such as the epidermis of a leaf. The word derives from the Greek 'derma', meaning skin, which also gives us dermatology and epidermis. Because it belongs chiefly to clinical and scientific registers, dermal is unlikely to surface in casual speech, yet its precision makes it indispensable wherever skin structure is discussed — from wound care and drug delivery patches to cosmetic procedures.
adjectiveRelating to the skin, especially the dermis (the layer of skin beneath the epidermis).
- Relating to the dermis, the layer of skin beneath the epidermis.
- Relating to the skin in general (especially in anatomy and botany).
"The surgeon made a small incision through the dermal layer to remove the cyst."
"Dermal fillers are among the most popular non-surgical cosmetic treatments today."
"In plants, dermal tissue forms the protective outer covering of leaves and stems."
Every tattoo you've ever admired lives in your dermal layer — ink that outlasts decades because your immune system can't quite reach it.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of dermal
Dermal comes from the Greek word 'derma' (genitive 'dermatos'), meaning 'skin' or 'hide', combined with the adjectival suffix '-al'. The root entered English scientific vocabulary during the nineteenth century, when Greek and Latin elements were systematically adopted for anatomical terminology. It shares its origin with dermatology, hypodermic, and taxidermy, all built on the same Greek root.
Related word forms
How dermal is actually used
Primarily used in medical, scientific, and technical contexts rather than everyday conversation; 'cutaneous' is a near-synonym favoured in formal medical writing.
Easily confused with dermal
Dermal relates to the skin, whereas dorsal relates to the back or upper surface of an animal.