planète gazeusecommon nounSyllable Decompositionplanète gazeuseEtymologyexpandcomposed of the noun planet and the adjective gaseous.Definition1. Planet much more massive than Earth, with a thick atmosphere of hydrogen and helium.astronomieexpandSynonymsgéante gazeuseplanète extérieureplanète jovienneAntonymplanète telluriqueTranslationsenglish:gas planetjapanese:ガス惑星