saccule
nounA small sac.
nounThe smaller of two membranous sacs in the vestibule of the inner ear.
nounA sac or cyst; especially, a little sac; a cell; a sacculus. Specifically
nounIn anatomy, the smaller of two sacs in the vestibule of the membranous labyrinth of the ear, situated in the fovea hemispherica, in front of the utricle, connected with the membranous canal of the cochlea by the canalis reuniens, and prolonged in the aquƦductus vestibuli to a pyriform dilatation, the saccus endolymphaticus.
nounSynonyms See
A little sac; specifically, the sacculus of the ear.
nounThe smallest
a small sac or pouch (especially the smaller chamber of the membranous labyrinth)