きょだいわくせい 巨大ガス惑星 LinksSentence search for 巨大ガス惑星Sentence search for きょだいガスわくせいKanji details for 巨, 大, 惑 and 星Edit in JMdict Noun1. gas giantAstronomy, See also 木星型惑星 Discussions Log in to talk about this word.