Definition of Cyclone 1. (meteorology) rapid inward circulation of air masses about a low pressure center; circling counterclockwise in the northern hemisphere and clockwise in the southern Noun 2. A violent rotating windstorm Noun Semanticaly linked words with "cyclone" Hyponims for word "cyclone" Lexical Analysis for "cyclone" cyclonal of or relating to or characteristic of a violent tropical storm of or relating to or characteristic of the atmosphere around a low pressure center cyclonic of or relating to or characteristic of a violent tropical storm of or relating to or characteristic of the atmosphere around a low pressure center of or relating to or characteristic of a violent tropical storm of or relating to or characteristic of the atmosphere around a low pressure center cyclonical of or relating to or characteristic of a violent tropical storm of or relating to or characteristic of the atmosphere around a low pressure center anticyclone (meteorology) winds spiraling outward from a high pressure center; circling clockwise in the northern hemisphere and counterclockwise in the southern has derived form cyclo- etymology cyclonelike etymology cyclonic etymology mesocyclone etymology ciclone [Portuguese] is derived from anticyclone is derived from cyclones