'Baseboard' definitions:

Definition of 'baseboard'

(from WordNet)
noun
A molding covering the joint formed by a wall and the floor [syn: baseboard, mopboard, skirting board]

Definition of 'Baseboard'

From: GCIDE
  • Baseboard \Base"board\, n. (Arch.) 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. [1913 Webster]