dermatology

n. branch of medicine which deals with the study and treatment of skin and skin disorders

Dermatology (from Greek δερμα, "skin") is a branch of medicine dealing with the skin and its appendages (hair, sweat glands, etc).
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Dermatology /der·ma·tol·o·gy/ the medical specialty concerned with the diagnosis and treatment of skin diseases. der·ma·tol·o·gy n. [more]Dermatology - Community and Resources

Noun
1. the branch of medicine dealing with the skin and its diseases
(hypernym) medicine, medical specialty

(n.)
The science which treats of the skin, its structure, functions, and diseases.