cloaca
An underground conduit for drainage; a sewer, esp. in ancient Rome.
A lintel which is intermittently attached to a structural member; the structural member assists the lintel in carrying the load.
A half-brick placed to look like a header for purposes of establishing a brickwork pattern, as in Flemish bond.
Eaves that do not overhang the face of a wall by more than the width of the gutter.
A mortar joint which is thicker than usual; used to bring a masonry course to a required height.