Red smoke swirling behind the wings of an aircraft as it leaves the ground

Red smoke on the ground shows the vortex made by the air flowing from the wing of the airplane. Image Credit: NASA

      a whirling or spinning mass, as of water or air; whirlpool or whirlwind

NASA studies the effects of vortexes made by airplane wings.

A tornado is a vortex of air that spins and makes a funnel.