球きゅう形けい嚢のうきゅうけいのうMeanings1nounsacculus; sacculeAnatomical term for the smaller of the two otolith organs in the inner ear, involved in balance and detecting vertical acceleration.球きゅう形けい嚢のうは内ない耳じの前ぜん庭ていにある平へい衡こう感かん覚かくに関