preceptor

A teacher or tutor.

A man who had thought so much on the subjects of language and education was surely no ordinary preceptor.

We shall resume our studies later on; but just now I am tired of playing the preceptor; and the eager thirst of my pupils for improvement does not console me for the slowness of their progress.

The head of a preceptory of Knights Templar.

A doctor who gives practical training to medical students, nurses etc.

Near-synonyms: mentor, professor