Staircase
Pronunciation : Stair"case`
Part of Speech : n.
Definition : Defn: A flight of stairs with their supporting framework, casing, balusters, etc. To make a complete staircase is a curious piece of architecture. Sir H. Wotton. Staircase shell. (Zo?l.) (a) Any scalaria, or wentletrap. (b) Any species of Solarium, or perspective shell.
Source : Webster's Unabridged Dictionary, 1913