Pisidium

noun
Pi·​sid·​i·​um | \ -ēəm \

Definition of Pisidium

: a genus of nearly cosmopolitan minute freshwater bivalves (family Sphaeriidae) usually somewhat smaller than those of the genus Sphaerium and having the siphons united at their ends

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History and Etymology for Pisidium

New Latin, diminutive of Latin pisum pea

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Dictionary Entries Near Pisidium

Pisidia

Pisidium

pisiform

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Cite this Entry

“Pisidium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Pisidium. Accessed 30 Jul. 2021.

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