Source : Webster's Revised Unabridged Dictionary (1913)

Caracole \Car"a*cole\, n. [F. caracole, caracol, fr. Sp. caracol
   snail, winding staircase, a wheeling about.]
   1. (Man.) A half turn which a horseman makes, either to the
      right or the left.

   2. (Arch.) A staircase in a spiral form.

   {En caracole}[F.], spiral; -- said of a staircase.