- cyclone - (meteorology) rapid inward circulation of air masses about a low-pressure center; circling counterclockwise in the northern hemisphere and clockwise in the southern
--1 is a kind of atmosphere, atmospheric state
--1 has parts: low, low pressure, depression
Antonyms: anticyclone
- cyclone - a violent rotating windstorm
--2 is a kind of windstorm
--2 has particulars: hurricane; tornado, twister; typhoon