lecturer

noun

1. A person who gives lectures, especially as a profession.

   “The lecturers are expert on lecturing on the subject, but they offer the splatterdash method of disseminating information with no point of view of their own.”

   “Mr. Abel, who lives in Westport, Conn., has earned his bread as a writer and lecturer on problem-solving tactics, and he has earned a reputation as a duke of dupery since 1959, when he masterminded the Society for Indecency to Naked Animals.”

2. A member of a university or college below the rank of assistant professor or reader; docent; lector.
3. (dated)A member of the Church of England clergy whose main task was to deliver sermons (lectures) in the afternoons and evenings.