In architecture a wellhole is an open space in a floor, to accommodate a staircase. The name is also given to the open space left beyond the ends of the steps of a staircase. Research Wellhole
In architecture a well staircase is a staircase having a wellhole as distinguished from one which occupies the whole of the space left for it in the floor. Research Well Staircase
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
Abbreviations
Research Wellhole
