noun
professor
pruh-FES-er/prəˈfesər/
A college or university teacher, especially one of higher rank.
The professor explains a geometric model to the university students.

Etymology
The pieces describe someone who openly acknowledges or declares something—in this case, expertise in an art or science. That claim to knowledge underlies the title for a university teacher of high rank.
In context
stellar career as an educator researcher and leader at the university of california at berkeley in addition to being the university's chief academic and budget officer mark is also a professor in earth and space sciences
More examples
- She became a professor of chemistry.
- Several professors attended the lecture.
- He asked his professor for advice about the assignment.
Forms
professor · professors
professorship noun — The position held by a professor
Similar words
- instructor
- A broader teaching role that need not carry professorial rank.
- lecturer
- A teaching title that may be below professor in rank.