from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of various small slender marine worms of the phylum Chaetognatha having a narrow, almost transparent body and sickle-shaped bristles on each side of the mouth.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A predatory marine worm of the phylum Chaetognatha.


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