dwarf planet

noun

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:
1990-95

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins

World English Dictionary

dwarf planet

—n
	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 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Dwarf planet is always a great word to know.

So is bezoar. Does it mean:

a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.

a chattering or flighty, light-headed person.

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The new addition, which isn't yet named, brings the dwarf planet's number of known satellites to four.

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"You know, if this is Venus, or some other strange planet, we're liable to run into some high-domed characters with green blood in their veins who'll blast at us with their atomic death rayguns, and there we'll be with these—these poor old-fashioned shootin' irons."

-Edward L. Bernds

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