A movement of the atmosphere opposite in character, as regards direction of the wind and distribution of barometric pressure, to that of a cyclone.

An extensive horizontal movement of the atmophere spirally around and away from a gradually progressing central region of high barometric pressure, the sprial motion being anticlockwise in the southern hemisphere.

A region characterized in the barometric pressure distribution by a system of closed isobars, with the highest pressure on the inside. It is also known as a 'high'.

An area of high pressure generally associated with light winds clear skies and settled weather.