(~s)
A ~ is a doctor who specializes in the study of skin and the treatment of skin diseases.
N-COUNT
dermatology
...drugs used in dermatology.
N-UNCOUNT
(~s)
A ~ is a doctor who specializes in the study of skin and the treatment of skin diseases.
N-COUNT
dermatology
...drugs used in dermatology.
N-UNCOUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012