Vor"ti*cal*ly

from The Collaborative International Dictionary of English v.0.48

Vortical \Vor"ti*cal\, a.
   Of or pertaining to a vortex or vortexes; resembling a vortex
   in form or motion; whirling; as, a vortical motion. --
   {Vor"ti*cal*ly}, adv.
   [1913 Webster]