'Staircase' definitions:
Definition of 'staircase'
From: WordNet
noun
A way of access (upward and downward) consisting of a set of steps [syn: stairway, staircase]
Definition of 'Staircase'
From: GCIDE
- Staircase \Stair"case`\ (st[^a]r"k[=a]s`), n. A flight of stairs with their supporting framework, casing, balusters, etc. [1913 Webster]
- To make a complete staircase is a curious piece of architecture. --Sir H. Wotton. [1913 Webster]
- Staircase shell. (Zool.) (a) Any scalaria, or wentletrap. (b) Any species of Solarium, or perspective shell. [1913 Webster]