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hot Jupiter

noun, Astronomy.
1.
any of a class of large, hot, gaseous planets similar to Jupiter in mass but outside our solar system.
Also called roaster.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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hot Jupiter in Science
hot Jupiter
  (hŏt)   
See under extrasolar planet.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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