unio

noun

ˈyünēˌō

1

capitalized : the type genus of the family Unionidae comprising freshwater mussels that have an oblong shell pearly within and covered without by a greenish or blackish epidermis

2

plural unios

-ōz

or unionides

ˌ⸗⸗ˈänəˌdēz

: any mussel of Unio or a related genus

unioid

ˈ⸗⸗ˌȯid

adjective

Word History

Etymology

New Latin, from Latin, a large pearl

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