room (architecture)

A room, in architecture, is any distinguishable space within a structure. Most typically a room is separated by interior walls from other spaces or passageways; moreover, it is separated by an exterior wall from outdoor areas, sometimes with a door. Historically the use of rooms dates at least to early Minoan cultures about 2200 BC, where excavations on Santorini, Greece at Akrotiri reveal clearly defined rooms within structures.
See more at Wikipedia.org...