|a.||1.||Being within the walls, as of a city.|
|2.||Of or pertaining to those activities occurring within a single institution or organization, |
|3.||(Anat. & Med.) Being within the substance of the walls of an organ; |
|Adj.||1.||intramural - carried on within the bounds of an institution or community; "most of the students participated actively in the college's intramural sports program"|
extramural - carried on outside the bounds of an institution or community; "extramural sports"