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English definition of “professor”

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professor

noun [C] uk   /prəˈfes.ər/ us    //
B1 a teacher of the highest rank in a department of a British university, or a teacher of high rank in an American university or college: Professor Stephen Hawking a professor of sociology a sociology professor [as form of address] Thank you, Professor.
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(Definition of professor from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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