
The Azores High (Anticiclone dos Açores) (also known as North Atlantic (Subtropical) High/Anticyclone or for short, NASH, the Bermuda-Azores High, or the Bermuda High/Anticyclone in the United States) is a large subtropical semi-permanent centre of high atmospheric pressure typically found south of the Azores in the Atlantic Ocean, at the Horse l...
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http://en.wikipedia.org/wiki/Azores_High

large, persistent, atmospheric high-pressure centre that develops over the subtropical region of the North Atlantic Ocean. It is a subtropical ... [2 related articles]
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http://www.britannica.com/eb/a-z/a/134

A semi-permanent area of high pressure often centred around the Azores in the mid-Atlantic. It is caused by the air at high levels moving out from the equatorial regions slowing down at about 30 degrees north and descending.
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http://www.metcheck.com/OTHER/glossary.asp

See Bermuda High.
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http://www.physicalgeography.net/physgeoglos/a.html

the semipermanent subtropical high over the North Atlantic Ocean, especially when it is located over the eastern part of the ocean; the same high over the western part of the Atlantic is called the Bermuda high ; on mean charts of sea level pressure, this high is one of the primary centers of action in northern latitudes.
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https://nsidc.org/cryosphere/glossary?page=2

a subtropical high centered near the Azores.
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https://www.infoplease.com/dictionary/azores-high
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