1. The bottom or lower part of any room; the part upon which we stand and upon which the movables in the room are supported. 2. The structure formed of beams, girders, etc., with proper covering, which divides a building horizontally into stories. Floor in sense 1 is, then, the upper surface of floor in sense 2. 3. The surface, or the platform, of a structure on which we walk or tr...
