Definition from Wiktionary, the free dictionary
preceptor (plural preceptors)
- The headmaster or principal of a school, especially a private school.
- A teacher or tutor.
1905, George Bernard Shaw, The author's apology from Mrs. Warren's Profession, pages 61:
- Here I must for the present break off my arduous work of educating the Press. 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.