Spadella

noun Spa·del·la \spəˈdelə\

Definition of Spadella

  1. :  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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Origin and Etymology of spadella

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


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