unionoid

The English word “unionoid” has 2 meanings listed here.

noun

Any member of the family Unionidae or its order Unionida of freshwater mussels.

adjective

Relating to, resembling or characteristic of the family Unionidae or its order Unionida of freshwater mussels.

Etymology

From taxonomic name Unio (with insertion of -n- after its etymon, Classical Latin ūniō (stem ūniōn-)) + -oid. Compare earlier unionid and taxonomic name Unionioda.

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More English words

unionize
unionized
unionizer
unionless
Uniontown
unionwide
unioval
uniovular

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.