statocyst

[ stat-uh-sist ]
/ ˈstæt əˌsɪst /

noun Zoology.

(in certain invertebrates) a sense organ consisting of a sac enclosing sensory hairs and particles of sand, lime, etc., that functions in maintaining equilibrium, serving to indicate position in space.

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Origin of statocyst

1900–05; stato- (see statoblast) + -cyst
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for statocyst

statocyst
/ (ˈstætəʊsɪst) /

noun

an organ of balance in some invertebrates, such as crustaceans, that consists of a sensory vesicle containing small granulesSee statolith
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012