wood, esp. oak and usually in the form of paneling, for lining interior walls.

the lining itself, esp. as covering the lower portion of a wall.

a dado, esp. of wood, lining an interior wall.

British . oak of superior quality and cut, imported from the Baltic countries for fine woodwork.

to line the walls of (a room, hallway, etc.) with or as if with woodwork

a room wainscoted in oak.