固体惑星 こたいわくせい Meanings Noun terrestrial planet; rocky planet See also: 地球型惑星 (ちきゅうがたわくせい). Kanji 固 solid. Read as コ. 体 body. Read as タイ. 惑 bewilder. Read as ワク. 星 star. Read as セイ. Jinuma: Japanese Dictionary · Word lists