释义 |
disappearing stair disappearing stair[′dis·ə‚pir·iŋ ′ster] (building construction) A stair that can be swung up into a ceiling space. disappearing stair, folding stair, loft ladderA swinging stair, usually a folding ladder, which enables passage to an attic space or loft. The stair is fixed to a trapdoor which, when closed, hides the stair from viewers below. |