wellhole

listen to the pronunciation of wellhole
Englisch - Türkisch
(İnşaat) asansör boşluğu
merdiven için bırakılan boşluk
merdiven boşluğu
Englisch - Englisch
The open space in a floor, to accommodate a staircase
The open space left beyond the ends of the steps of a staircase
A cavity which receives a counterbalancing weight in certain mechanical contrivances, and is adapted also for other purposes