D defs.my
Entry 2 senses Webster, 1913

Preceptor

· Pre·cep·tor · IPA /ˈpɹiˌsɛp.tɚ/
01 n. One who gives commands, or makes rules; specifically, the master or principal of a school; a teacher; an instructor.
  1. 1.
    One who gives commands, or makes rules; specifically, the master or principal of a school; a teacher; an instructor.
  2. 2.
    The head of a preceptory among the Knights Templars.