Within the walls; within one institution, particularly a school.
"Intramural sports involve teams that are all within the same school."
Within the substance of the walls of an organ.
A (usually sports) competition between teams belonging to the same school.
Between walls; enclosed by walls.
Lying between walls; inclosed by walls.
Taking place between two different institutions or cities; as, an intermural soccer match between two schools.
between two or more institutions etc;
"an intermural track meet"