じゅうりょくけん 重力圏 LinksSentence search for 重力圏Sentence search for じゅうりょくけんKanji details for 重, 力 and 圏Edit in JMdict Noun1. gravitational sphere (of a celestial body); gravitational fieldAstronomy, See also 引力圏 Discussions Log in to talk about this word.