dermatologist
n. countable C1 Advanced US //ˌdɝməˈtɑɫədʒɪst// UK //dˌɜːmɐtˈɒlədʒˌɪst// der·ma·tol·o·gist
n. a doctor who specializes in treating skin, hair, and nails. You see this person if you have a rash, acne, or other skin problems.
n. a medical practitioner qualified to diagnose and treat disorders of the skin, hair, and nails.
The dermatologist gave me a cream for my dry skin.
After noticing a strange mole on her arm, she scheduled an appointment with a dermatologist for a professional screening.
While general practitioners can treat minor rashes, a dermatologist possesses the specialized diagnostic tools required to identify rare autoimmune conditions that manifest through skin lesions.
From dermatology + -ist or dermato- + -logist.
Usage
Commonly used with the definite article when referring to a specific appointment ('the dermatologist').