Sacculus

sac·cule  (skyl) also sac·cu·lus (-y-ls)

n. pl. sac·cules also sac·cu·li (sky-l)

1. A small sac.

2. The smaller of two membranous sacs in the vestibule of the inner ear.

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[Latin sacculus, diminutive of saccus, bag; see sack¹.]

Thesaurus

Noun

1.

sacculus - a small sac or pouch (especially the smaller chamber of the membranous labyrinth) saccule membranous labyrinth - the sensory structures of the inner ear including the labyrinthine receptors and the cochlea; contained within the bony labyrinth sac - a structure resembling a bag in an animal