名詞 preceptor:

1. teacher at a university or college (especially at Cambridge or Oxford)
   同義詞：don

pre.cep.tor

n.（名詞）
A teacher; an instructor.
老師；指導(dǎo)者
An expert or a specialist, such as a physician, who gives practical experience and training to a student, especially of medicine or nursing.
指導(dǎo)醫(yī)師：尤指在醫(yī)學(xué)或護(hù)理方面給予學(xué)生實(shí)際經(jīng)驗(yàn)和訓(xùn)練的專家和內(nèi)行，如醫(yī)生
The head of a preceptory.
圣殿騎士地方分團(tuán)團(tuán)長(zhǎng)

來源：
Middle English
中古英語
from Latin praeceptor
源自 拉丁語 praeceptor
from praecipere [to teach] * see precept
源自 praecipere [教] *參見 precept

【引伸】
pre.cepto.rial
pre.cepto.rially
adv.（副詞）