Definition of "extramural"

extramural

adjective
not comparable
1. Taking place outside the walls of an institution, especially a school or university.
  Quotations
  [...] a notable acquisition at Chiswick is a machine, believed to be unique of its type, which has been designed and constructed under an extramural research contract at the University of Nottingham for studying fatigue in railway axles.
  1961 February, “Talking of Trains: New L.T. research laboratory”, in Trains Illustrated, page 76
2. Describing teaching of students who are not resident at such an institution.