CARACOLE

Car″a‐cole (?), n. [[F. caracole, caracol, fr. Sp. caracol snail, winding staircase, a wheeling about.]] 1. 1. (Man.) A half turn which a horseman makes, either to the right or the left.
2. 2. (Arch.) A staircase in a spiral form.
‖En caracole (�) [], spiral; — said of a staircase.