intramural
adj.
1846, literally "within the walls," from intra- "within" + Latin muralis "pertaining to a wall," from murus "wall" (see mural). Activity "within the walls" of a city, building, community, school, etc. Equivalent to Late Latin intramuranus.
〔李〕[intra-;mur;-ala.] a.学校内的； 单位内部的 ←mur (L murus)=wall 墙
〔李〕a.（国家、团体等）内部的 [mur=wall] ←intra-[L] =within在内；inside在内部
〔蒋〕[intra-内，mur墙，-al…的;’墙内的”] 内部的，(国家，城市，团体等)自己范围内的