Sweeping staircase

[teleostomi]

What is a "sweeping staircase"?

[danmahaffey]

What is a "sweeping staircase"?This is a broad, curving staircase, like in the old movies, or in some grand homes, that reaches between a large entry or foyer and a second floor balcony. The staircase sweeps (figuratively) in a flowing motion from one floor to another, like the long train of a dress.