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Pluto

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pluto

Main Entry:: Plu·to
Pronunciation:: \ˈplü-(ˌ)tō\
Function:: noun
Etymology:: Latin Pluton-, Pluto, from Greek Ploutōn
Date:: 14th century

1: the Greek god of the underworld — compare dis2[New Latin] : a dwarf planet occupying an orbit that crosses the orbit of Neptune

usage In 2006 the International Astronomical Union defined planet in such a way as to exclude Pluto, reclassifying it instead as a dwarf planet. Although discussion of the matter continues, the change has been widely accepted.

Learn more about "Pluto" and related topics at Britannica.com

See a map of "Pluto" in the Visual Thesaurus

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