an·ti·cy·clone 
(ăn′tē-sīklōn′, ăn′tī-)
(ăn′tē-sīklōn′, ăn′tī-)n.
An extensive system of winds spiraling outward from a high-pressure center, circling clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere.
an′ti·cy·clonic (-klŏnĭk) adj.