(a.) Of or pertaining to a vortex or vortexes; resembling a vortex in form or motion; whirling; as, a vortical motion.

affluent circumgyratory circumvolutory confluent coursing cyclonic decurrent defluent diffluent flowing fluent fluxional fluxive gulfy gushing gyral gyrational gyratory gyrostatic mazy meandering pouring profluent racing rotary rotational rotatory running rushing serpentine sluggish streaming surging surgy swirly tidal tornadic trochilic vertiginous whirlabout whirligig whirlwindish whirlwindy whirly