cyclonic vs whirlwind

cyclonic

adj
  • Rotating in the same direction as the Earth i.e. anticlockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. 

  • Of, pertaining to, or resembling a cyclone. 

whirlwind

noun
  • A person or body of objects or events sweeping violently onward. 

  • A violent windstorm of limited extent, as the tornado, characterized by an inward spiral motion of the air with an upward current in the center; a vortex of air. It usually has a rapid progressive motion. 

adj
  • Rapid and minimal: a whirlwind tour, a whirlwind romance. 

How often have the words cyclonic and whirlwind occurred in a corpus of books? (source: Google Ngram Viewer )