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dwarf planet

noun
1.
a spherical celestial body revolving about the sun, similar to a planet but not large enough to gravitationally clear its orbital region of most or all other celestial bodies. Pluto is a dwarf planet.
Origin
1990-1995
1990-95
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for dwarf planet
  • The new addition, which isn't yet named, brings the dwarf planet's number of known satellites to four.
British Dictionary definitions for dwarf planet

dwarf planet

noun
1.
any celestial body within the solar system that is larger than a satellite but smaller than a planet, and that orbits the sun
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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Word Value for dwarf

12
12
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