full professor
US /ˌfʊl prəˈfes.ər/
UK /ˌfʊl prəˈfes.ər/

1.
a university professor of the highest rank, typically holding a permanent position and having extensive experience and publications in their field
:
•
Dr. Lee was promoted to full professor after twenty years of dedicated research.
•
To become a full professor, one must demonstrate excellence in teaching, research, and service.