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Quadrula



Quad·ru·la [ ˈkwädrələ]



Quadrula   
noun
[ˈkwädrələ]

Definition of Quadrula

: a genus of freshwater mussels (family Unionidae) having a thick shell and often being approximately square in shape



History and Etymology for Quadrula

New Latin, from Late Latin, small square, from Latin quadra square + -ula; akin to Latin quattuor four



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