'Sacculus' definitions:

Definition of 'sacculus'

From: WordNet
noun
A small sac or pouch (especially the smaller chamber of the membranous labyrinth) [syn: saccule, sacculus]

Definition of 'Sacculus'

From: GCIDE
  • Sacculus \Sac"cu*lus\, n.; pl. Sacculi. [L., little sack.] (Anat.) A little sac; esp., a part of the membranous labyrinth of the ear. See the Note under Ear. [1913 Webster]