Chaetognatha

plural noun Chae·tog·na·tha \ kēˈtägnəthə \

Definition of Chaetognatha

: a phylum of small, slender marine animals comprising the arrow worms
  • But the absence of a definite synapomorphy between Chaetognatha and any other metazoan taxon except Bilateria itself has cast the arrowworms into an enduring isolation.
  • —Edward E. Ruppert et al.Invertebrate Zoology: A Functional Evolutionary Approach2004
— see also sagitta, spadella

chaetognathan

\-thən\ adjective

chaetognathous

\-thəs\ adjective

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Origin and Etymology of chaetognatha

New Latin, from chaet- + -gnatha


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