準じゅん惑わく星せいじゅんわくせいじ字FuriganaMeanings1noundwarf planetastronomy›Astronomical term for a celestial body that orbits the sun and is massive enough to be rounded by its own gravity, but has not cleared its neighboring region of planetesimals. Used in modern astronomy since the 2006 IAU definition.冥めい王おう星せいは2006年ねんに準じゅん惑わく星
