Pluto: Meaning and Definition of
Pronunciation: (pl'tō), [key]
- a name given to Hades, under which he is identified by the Romans with Orcus.
- the planet ninth in order from the sun, having an equatorial diameter of about 2100 miles (3300 km), a mean distance from the sun of 3.674 billion miles (5.914 billion km), a period of revolution of 248.53 years, and one known moon, Charon. See table under
- pluto (Thesaurus)