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Spadella

noun
Spa·​del·​la | \ spəˈdelə\

Definition of Spadella

: a genus of planktonic marine animals (phylum Chaetognatha) that includes arrow worms resembling those of the genus Sagitta but having a broader body and only one pair of lateral fins

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History and Etymology for Spadella

New Latin, probably from Late Latin spada sword (alteration of Latin spatha broad sword) + New Latin -ella

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