Pluto
noun
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Definition of Pluto
1 : the Greek god of the underworld — compare dis
2 [ New Latin ] : a dwarf planet occupying an orbit that crosses the orbit of Neptune
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From the Editors at Merriam-Webster
What Makes a Planet?
What Makes a Planet?
The term comes from the Greek word for 'wanderer'
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Time Traveler for Pluto
The first known use of Pluto was in the 14th century
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More Definitions for Pluto
Pluto
noun
English Language Learners Definition of Pluto
: the object in our solar system that in the past was thought to be the planet farthest from the sun but that is no longer considered to be a planet
See the full definition for Pluto in the English Language Learners Dictionary
Pluto
noun
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Kids Definition of Pluto
: a celestial object that orbits the sun at an average distance of 3.7 million miles (5.9 million kilometers) and has a diameter of about 1500 miles (2300 kilometers) and is often considered one of the planets
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