noun.
A molding that conceals the joint between an interior wall and the floor.
The Century Dictionary and Cyclopedia
noun.
A line of boarding around the interior walls of a room, next to the floor.
noun.
In photography, the foundation of the camera, which carries the lens, front, bellows, and back.
the GNU version of the Collaborative International Dictionary of English
noun.
A board, or other woodwork, carried round the walls of a room and touching the floor, to form a base and protect the plastering; -- also called washboard (in England), mopboard, and scrubboard.