staircase : Idioms & Phrases


Geometrical staircase

  • one in which the stairs are supported by the wall at one end only.
Webster 1913

moving staircase

  • noun a stairway whose steps move continuously on a circulating belt
    moving stairway; escalator.
WordNet

Staircase shell

  • . (Zoöl.) (a) Any scalaria, or wentletrap . (b) Any species of Solarium, or perspective shell.
Webster 1913

Well staircase

  • (Arch.), a staircase having a wellhole (see Wellhole (b)), as distinguished from one which occupies the whole of the space left for it in the floor.
Webster 1913