: a fluid-containing organ of many invertebrates that contains an otolith : statocyst

Word History

Etymology

International Scientific Vocabulary; from its probable auditory function

First Known Use

1874, in the meaning defined above

Time Traveler
The first known use of otocyst was in 1874

Browse Nearby Words

Cite this Entry

“Otocyst.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/otocyst. Accessed 8 Jul. 2026.

Medical Definition

1
: a fluid-containing organ of many invertebrates that contains an otolith
2
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