(~s)
A ~ is the post of professor in a university or college.
He has accepted a research ~ at Cambridge University.
N-COUNT
(~s)
A ~ is the post of professor in a university or college.
He has accepted a research ~ at Cambridge University.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012