Definition of "preceptor" [pre•cep•tor]

• A teacher; an instructor. (noun)
• An expert or specialist, such as a physician, who gives practical experience and training to a student, especially of medicine or nursing. (noun)
• The head of a preceptory. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Now it is not probable that a man chosen for a preceptor was a Frank."
• "My preceptor is a MD, JD and chief of critical care department and does consulting work with insurance companies."
• "Granted, the project does not hold my interest in the least, but my preceptor is a jovial fellow."