The outer body wall of the autozooid, including the cuticle and adjacent epithelium and calcified structures. (Hayward & Ryland, 1985) Body wall that extends body of zooid and of colony; includes outermost cuticular or gelatinous layer. (Boardman & Cheetham, 1983)
Any wall or element of a wall, or any member or group of members, which defines the exterior boundaries or courts of a building and which has a slope of 60 degrees or greater with the horizontal plane.
the outer vertical surface of a structure which encloses the entire structure
Any outer wall serving as a vertical enclosure of a building other than a party wall.
Outside wall of a structure which is normally insulated to protect the interior of the structure. Exterior walls can also be load-bearing walls.