Definition of wellhole

  1. 1 :  the hole, pit, or shaft of a well

  2. 2a :  the open space in a floor or through a series of floors for the accommodation of a staircase b :  the open space about which the stairs of a winding or circular staircase turn

  3. 3 :  a cavity for movement of a counterbalance or similar mechanical device

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First Known Use of wellhole


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a brief usually trivial fact

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