: the hole, pit, or shaft of a well
: the open space in a floor or through a series of floors for the accommodation of a staircase
: the open space about which the stairs of a winding or circular staircase turn
: a cavity for movement of a counterbalance or similar mechanical device

Word History

First Known Use

1663, in the meaning defined at sense 2a

Time Traveler
The first known use of wellhole was in 1663

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Dictionary Entries Near wellhole

Cite this Entry

“Wellhole.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wellhole. Accessed 30 May. 2023.

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