1. a teacher of the highest rank in a college or university
2. a teacher at a college or university
Usage: general usage

Examples

• The professor explained the theory clearly to her students.
• He became a full professor after twenty years of teaching.
• Professor Smith will hold office hours on Tuesday afternoons.
• She is a professor of biology at the state university.
• The chemistry professor assigned a challenging research project.
• Students lined up to ask the professor questions after class.