hot Jupiter

noun Astronomy.
any of a class of large, hot, gaseous planets similar to Jupiter in mass but outside our solar system.
Also called roaster. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
hot Jupiter   (hŏt)  Pronunciation Key 
See under extrasolar planet.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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