| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024Plu•to (plo̅o̅′tō),USA pronunciation n. - Mythology[Class. Myth.]a name given to Hades, under which he is identified by the Romans with Orcus.
- Astronomythe 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 planet.
Collins Concise English Dictionary © HarperCollins Publishers:: Pluto /ˈpluːtəʊ/ n - the god of the underworld; Hades
Pluto /ˈpluːtəʊ/ n - the second-largest dwarf planet in the solar system, located in the Kuiper belt; discovered in 1930 by Clyde Tombaugh (1906–97); classified as a planet until 2006, when it was reclassified as a dwarf planet. It has a diameter of 2390 km
Etymology: Latin, from Greek Ploutōn, literally: the rich one |