Pluto

Plu·to

noun \ˈplü-(ˌ)tō\

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

Usage Discussion of PLUTO

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.

Origin of PLUTO

Latin Pluton-, Pluto, from Greek Ploutōn

First Known Use: 14th century

Rhymes with PLUTO

Bhutto