from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of various small slender marine worms of the phylum Chaetognatha, having a narrow, almost transparent body and spines on each side of the mouth that are used for grasping prey.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A predatory marine worm of the phylum Chaetognatha.


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