wellhole

---

Noun

wellhole (plural wellholes)

1. The open space in a floor, to accommodate a staircase.
2. The open space left beyond the ends of the steps of a staircase.
3. A cavity which receives a counterbalancing weight in certain mechanical contrivances, and is adapted also for other purposes.

---

This text is extracted from the Wiktionary and it is available under the CC BY-SA 3.0 license | Terms and conditions | Privacy policy 0.002