sphaeridium

noun
sphae·​rid·​i·​um | \ -ēəm \
plural sphaeridia\ -​ēə \

Definition of sphaeridium

: one of the small organs found on or buried in the test of all recent sea urchins except the Cidaroida suggesting statoliths in structure and possibly subserving a similar function

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History and Etymology for sphaeridium

New Latin, from sphaer- + -idium

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Dictionary Entries Near sphaeridium

sphaeridial

sphaeridium

sphaeriid

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Cite this Entry

“Sphaeridium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sphaeridium. Accessed 17 Sep. 2021.

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