Wellhole

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Wellhole \Well"hole`\, n.
     [1913 Webster]
     1. (Arch.)
        (a) The open space in a floor, to accommodate a staircase.
        (b) The open space left beyond the ends of the steps of a
            staircase.


            [1913 Webster]
  
     2. A cavity which receives a counterbalancing weight in
        certain mechanical contrivances, and is adapted also for
        other purposes. --W. M. Buchanan.
        [1913 Webster]