the medical specialty concerned with the diagnosis and treatment of disease of the skin, a branch of medicine dealing with the skin, its structure, functions, and diseases, õpetus nahast ja nahahaigustest, dermatoveneroloogia haru, mis on kitsamalt spetsialiseerunud naha ja nahaaluse koe, naha derivaatide ning nahal avalduvate süsteemsete haiguste ja nahahaiguste süsteemsete sümptomite diagnoosimisele,