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outer planet

noun, Astronomy
1.
any of the four planets with orbits outside the orbit of Mars, namely, the planets Jupiter, Saturn, Uranus, and Neptune.
Compare inner planet.
Origin
1940-1945
1940-45
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for outer planet
  • The outer planet is also fairly large and is farther from the star than the first planet.
British Dictionary definitions for outer planet

outer planet

noun
1.
any of the planets Jupiter, Saturn, Uranus, Neptune, and (formerly) Pluto, whose orbit lies outside the asteroid belt
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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outer planet in Science
outer planet  
Any of the five planets Jupiter, Saturn, Uranus, Neptune, and Pluto, whose orbits lie outside that of Mars. With the exception of Pluto, the outer planets are large gas giants. Compare inner planet. See also superior planet.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Word of The Day

Difficulty index for outer planet

Few English speakers likely know this word

Word Value for outer

5
6
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