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 (săk′yo͞ol) also sac·cu·lus (-yə-ləs)
n. pl. sac·cules also sac·cu·li (săk′yə-lī′)
1. A small sac.
2. The smaller of two membranous sacs in the vestibule of the inner ear.

[Latin sacculus, diminutive of saccus, bag; see sack1.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈsæk yul)

1. the smaller of two sacs in the membranous labyrinth of the inner ear.
2. a little sac.
[1830–40; < Latin sacculus]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sacculus - a small sac or pouch (especially the smaller chamber of the membranous labyrinth)
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The pathophysiology of VDA has been linked to sudden changes in the otolith function of the utriculus and/or sacculus due to change in pressure gradients within the inner ear [2,) 7].
(1982) Quantal analysis of a decremental response at hair cell-afferent fibre synapses in the goldfish sacculus. J.
Ocular vestibular evoked myogenic potential (oVEMP) reflect the excitatory utricular response and are used to evaluate the ascending vestibular pathway, as the crossed vestibulo-ocular reflex (13) pointed to the shift of the contralateral eye to sound stimulation of the vestibular system (14), demonstrating that acoustic stimulation of the otoliths leads to oVEMP However, there still are doubts about whether oVEMP records changes exclusively in the utriculus or also in the sacculus (15).
The OTOF gene, which encodes the otoferlin protein, is expressed highly in the internal hair cells in the organ of Corti, utriculus, and sacculus and in the brain.
The sacculus (sl) is about one-third the length of the valva, whereas it is about half the length in B.
3-7): Valvas alargadas, con pelos en el sacculus y sobre el margen ventral y dorsal de la valva.
Tegumen prominente pero no tan curvado a nivel ventral como en la especie nominotipica, vinculum recto y alargado, saccus muy corto y poco perceptible, valvae en vista lateral cilindricas y curvas, con el proceso apical con punta redondeada y el proceso dorsal grueso, sacculus en forma de gancho y el gnathos poco conspicuo.
Of these species, seven (Dinophysis acuminata, Dinophysis acuta Ehrenberg, Dinophysis caudata Saville-Kent, Dinophysis fortii Pavillard, Dinophysis miles Cleve, Dinophysis ovum Schiitt, Dinophysis sacculus Stein) have been associated with DSP events (Reguera et al.
sacculus Stein were present in most of the areas directly influenced by seawaters (Table 2), but not in the inner parts.
After exposing the flies to DEET, the team identified responsive neurons in a pit in the antenna called the sacculus. These cells harbor a protein called Ir40a, a receptor present in many other insects.