From Longman Dictionary of Contemporary Englishextramuralex‧tra‧mu‧ral /ˌekstrəˈmjʊərəl◂ $ -ˈmjʊr-/ adjective [only before noun] 1 OUT/OUTSIDErelating to a place or organization but happening or done outside it extramural activities2 especially British EnglishSEC extramural courses are for people who are not full-time students
Examples from the Corpus
extramural• He has always been careful to balance his busy executive life with a strong interest in extramural activities.• One night, after an extramural film excursion, Carl stays behind in her flat.• It presumably developed as an extramural market place.• the director of extramural research• extramural sportsOrigin extramural (1800-1900) Latin extra muros “outside the walls” 