Wellhole
Pronunciation : Well"hole`
Part of Speech : n.
Definition : 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.
2. A cavity which receives a counterbalancing weight in certain mechanical contrivances, and is adapted also for other purposes. W. M. Buchanan.
Source : Webster's Unabridged Dictionary, 1913
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