Pluto

  1. Proper noun.  (context, Greek god) Greek and Roman god of the underworld.
  2. Proper noun.  (astronomy) Originally known as the ninth planet but reclassified in 2006 as a dwarf planet, the brightest and first known Kuiper belt object, represented by the symbol (unicode, ♇) in astronomy and 16px in astrology.
  3. Verb.  (neologism) To demote or devalue something.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.