A preceptor is an experienced practitioner who:
Various professions also have other terms for the role of a preceptor such as mentor, or field, clinical or agency supervisor.
Dalhousie School of Nursing (2018). Preceptor eLearning Course: Module 1. Retrieved from http://preceptor.healthprofessions.dal.ca/?page_id=18.
The preceptee is the individual in the learner role. They may be a student, a new hire, or an experienced practitioner entering a new role.