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wellhole |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Wellhole \Well"hole`\, n. 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.