dwarf planetnoun [ C ]
uk/ˈdwɔːf ˌplæn.ɪt/us/ˈdwɔːrf ˌplæn.ɪt/a round mass of metal and rock or gas, moving around the Sun or another star, that is not large enough to be considered a planet. Dwarf planets in the solar system include Ceres, Pluto, and Eris.
Thesaurus: synonyms and related words
Astronomy
- asteroid
- astral
- astro-
- astrolabe
- astronomer
- gibbous
- heavenly body
- interplanetary
- interstellar
- Jupiter
- Pleiades
- plough
- Pluto
- Polaris
- pulsar
- Uranus
- Venus
- vernal equinox
- wane
- white dwarf
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Examples from literature
- Instead, it is now called a dwarf planet, which means a small planet.