in ‧ tra ‧ mu ‧ ral /ˌɪntrəˈmjʊərəl◂ $ -ˈmjʊr-/ BrE AmE adjective American English
[ Date: 1800-1900 ; Language: Latin ; Origin: intra muros 'inside the walls' ]
happening within one school, or intended for the students of one school:
an intramural softball competition
⇨ ↑ extramural