岩がん石せき惑わく星せいがんせきわくせいじ字FuriganaMeanings1nounrocky planet; terrestrial planetastronomy›Astronomical term for a planet with a solid rocky surface, such as Earth or Mars. Synonymous with 地球型惑星 (ちきゅうがたわくせい).See also: 地球型惑星 (ちきゅうがたわくせい)
