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Great Red Spot

noun, Astronomy
1.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for Great Red Spot

Great Red Spot

noun
1.
a large long-lived oval feature, south of Jupiter's equator, that is an anticyclonic disturbance in the atmosphere
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Great Red Spot in Science
Great Red Spot  
A very large, high-pressure atmospheric feature on the planet Jupiter, characterized by anticyclonic winds circulating at a speed of approximately 400 km (248 mi) per hour. The storm has persisted on Jupiter's surface for more than 300 years since first observed through telescopes; the cause of its reddish color is unknown.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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