en caracole

from The Collaborative International Dictionary of English v.0.48

Caracole \Car"a*cole\, n. [F. caracole, caracol, fr. Sp. caracol
   snail, winding staircase, a wheeling about.]
   [1913 Webster]
   1. (Man.) A half turn which a horseman makes, either to the
      right or the left.
      [1913 Webster]

   2. (Arch.) A staircase in a spiral form.
      [1913 Webster]

   {En caracole}[F.], spiral; -- said of a staircase.
      [1913 Webster]