extramural

Từ điển Oxford Advanced Learner 8th

extra·mural BrE [ˌekstrəˈmjʊərəl] NAmE [ˌekstrəˈmjʊrəl] adjective usually before noun
1. (BrE)arranged by a university, college, etc. for people who only study ↑part-time
•extramural education/studies/departments
see also ↑extension (⁷)
2. (formal)happening or existing outside or separate from a place, an organization, etc
•The hospital provides extramural care to patients who do not need to be admitted.

Word Origin:
[extramural] mid 19th cent. (in sense 2): from Latin extra muros ‘outside the walls’ + ↑-al.