(Anatomy)the smaller of the two fluid-filled sacs forming part of the labyrinth of the inner ear (the other being the utriculus). It contains a region of hair cells and otoliths which send signals to the brain concerning the orientation of the head (剖)(内耳迷路中的)球囊;小囊 ■another term for saccule 同 saccule
语源
mid 18th cent.: from Latin, diminutive of saccus 'sack'