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English definition of “Pluto”

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Pluto

noun [no plural]
 
 
/ˈpluːtəʊ/
a dwarf planet (= an object in space like a small planet) that comes after Neptune in distance from the sun. Pluto was considered to be a proper planet until 2006, when it was officially decided that it was a dwarf planet.Planets
(Definition of Pluto from the Cambridge Learners Dictionary © Cambridge University Press)
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