helix stair
Same as spiral stair.
Tag: spiral stair
helical stair
A spiral stair.
cylindrical stair
Same as spiral stair.
corkscrew stair
A spiral stair.
cockle stair
A spiral stair.
cochlea
1. A tower for a spiral staircase. 2.A spiral stair.
circular stair
Same as spiral stair; a stair having a cylindrical staircase.
central newel
In a spiral stair, the column around which the stairs are wound.
caracole
A spiral stair.