木星型惑星 もくせいがたわくせい Meanings Noun gas giant (Jupiter, Saturn) See also: 天王星型惑星 (てんのうせいがたわくせい). giant planet (Jupiter, Saturn, Uranus, Neptune); Jovian planet Kanji 木 tree. Read as モク. 星 star. Read as セイ. 型 type. Read as かた. 惑 bewilder. Read as ワク. Word lists Astronomy Jinuma: Japanese Dictionary · Word lists