statocyst(redirected from Balance organs)
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A small organ of balance in many invertebrates, consisting of a fluid-filled sac containing statoliths that stimulate sensory cells and help indicate position when the animal moves.
(Zoology) an organ of balance in some invertebrates, such as crustaceans, that consists of a sensory vesicle containing small granules. See statolith
an organ of equilibrium in certain invertebrates, consisting of a fluid-filled sac enclosing sensory hairs and particles of lime or sand.